Extra Long Drill Bits for Deep Holes

Long drill bits reach where ‘regular’ drill bits just can’t.

Using Aircraft Drill BitsAircraft drill bits are long drill bits originally designed for use in the aircraft industry where they often need to drill holes reaching through deep cavities, and then through thin materials. I find them invaluable in my shop for drilling holes in tight spaces, and drilling holes through long or wide pieces of wood. Now aside from those somewhat obvious uses, I’ll show you two other uses, and then give you some buying advice.

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Using Aircraft Drill BitsMy set. I own ten 6″ long aircraft bits ranging from 1/16″ to 1/4″ diameter. I bought mine individually over many years. I’m missing a few of the 64thinch increment bits, but that’s no big deal. If I were buying them today, I’d just start with a 13-piece set ranging up to 1/4″ diameter. You can buy larger diameter aircraft bits, up to 1/2″ diameter, but my experience in the shop is you don’t need any long bits larger than 1/4″ diameter, other than maybe one long 3/8″ diameter bit. I own a few other long drill bits, but they only get used for house repairs.

Using Aircraft Drill BitsDrill pilots holes. Here’s a great example of using an aircraft drill bit. I was attaching table extension slides to the underside of a new dining table, and I needed to drill pilot holes for the screws. Of course this could be done other ways, but using an aircraft bit saves a lot of time. I was able to drill the holes, insert the screws, and not have to move the slide even.

Using Aircraft Drill BitsDrill pocket holes. This type of drilling is where an aircraft bit really shines. You can’t do this with a ‘regular’ drill bit. I drilled the counterbore hole using a brad point bit, and now I’m drilling the clearance hole with an aircraft bit. I do own a pocket hole jig, but often I find it can’t drill the hole I need, and I then drill them this way.

Using Aircraft Drill Bits6″ bit set. This 13-piece set is very inexpensive, and a great way to get what I consider to be close to, if not all the aircraft bits you should ever need. The set, including the case, can be bought from Grizzly Industrial (see Sources). The bits are made from high-speed steel, and they range from 1/16″ to 1/4″ by 64ths. You can also buy individual bits online from Drill Bit Warehouse (see sources), or at some hardware stores, or some fastener supply companies.

Using Aircraft Drill Bits12″ bit set. Grizzly also sells this longer and more expensive whopping 29-piece set. It goes from 1/16″ to 1/2″ in 1/6″ increments. If you owned this set, I doubt you’d ever be looking for a missing bit!

Photos By Author

Sources:

Grizzly Industrial, Inc.

http://www.grizzly.com

(800) 523-4777

Drill Bit Warehouse

http://www.drillbitwarehouse.com/

(800)-350-8665

Discussion
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107 Responses to “Extra Long Drill Bits for Deep Holes”
  1. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  2. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  3. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  4. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  5. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  6. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  7. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  8. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  9. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  10. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  11. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  12. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  13. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  14. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  15. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  16. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  17. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  18. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  19. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  20. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  21. John

    Very interesting. The long drill bits I have (limited amount) I call jobber bits. The 6″ and 12″ bits would be very useful in the shop. Thanks for the info.

    Reply
  22. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  23. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  24. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  25. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  26. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  27. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  28. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  29. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  30. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  31. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  32. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  33. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  34. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  35. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  36. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  37. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  38. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  39. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  40. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  41. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  42. Richard Newell

    never thought those long bits my grandfather had would come in to use one day or be called aircraft bits….

    Reply
  43. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  44. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  45. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  46. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  47. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  48. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  49. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  50. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  51. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  52. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  53. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  54. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  55. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  56. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  57. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  58. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  59. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  60. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  61. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  62. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  63. John T

    Used these bits many times in the past. Once you use them you will wonder how you did without them.

    Reply
  64. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  65. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  66. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  67. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  68. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  69. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  70. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  71. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  72. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  73. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  74. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  75. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  76. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  77. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  78. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  79. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  80. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  81. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  82. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  83. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  84. DnTwnBro

    I had one of the smaller aircraft/ship/longer bits (from father-in-law who worked on the space shuttles) that really has saved me.
    I decided that I would build a hunting knife and attach an elk antler handle to the blade. I cut my first one with a sawzall “Milwaukee”. Well needless to say it was ragged so I got to looking around and in a box of rivits I found the aircraft bit which I put depth tape on before I started drilling and went to work. I don’t know how else I could have made such beautiful handles without the reach those bits have:-)
    I ended up making several more for my relatives after they had seen how great the knives and handles came out.
    Now I want to try the tip of making a pocket hole with it. I have the jig but it only does one size hole.
    Thanks for the tip.

    Reply
  85. Jennifer

    My husband is an A&P mechanic (A&P=Airframe and Powerplant) who works for a major Airlines and he has never heard of this drill bits.

    Reply