Upgrade your old 8" Straight knife jointer with this helical cutterhead. This helical cutterhead features four rows of replaceable carbide inserts for a total of 40 carbide inserts effectively providing an incredibly smooth finish.

Upgrade your old 6" Straight knife jointer with this helical cutterhead. This helical cutterhead features four rows of replaceable carbide inserts for a total of 30 carbide inserts effectively providing an incredible finish.