Using a Spiral Cutterhead on Your Jointer

Spiral Cutterheads for the Jointer: Worth the Upgrade Price?

Nope, that’s certainly not your grandpa’s jointer cutterhead. It’s called a spiral cutterhead. It is a newer design that uses the concept of insert tooling rather than traditional straight knives installed in the cutterhead. Small square carbide cutters are placed in close proximity to one another along a machined spiral pattern in a steel head.

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