This helical cutterhead is machined to fit Jet 8-inch jointers, including

• Jet JJ-8 8″ Jointer
• Jet JWJ-8CS 8″ Jointer
• Jet JJ-8CS 8″ Jointer
• Jet JJ-8HH 8″ Jointer

The 8″ helical spiral cutterhead with 36 top-quality tungsten carbide insert knives will completely turn your jointer to the next level. Our helical heads are well manufactured by 5-spindle CNC machines, resulting in excellent coaxiality. Tungsten carbide insert knives are made of 100% raw material, so compared with HSS knives, we provide you 

• The better wood surface finish on both hardwood and softwood.
• The shear cut virtually eliminates tear-outs and kick-backs.
• 40X lifetime from our proud carbide insert.
• Higher work efficiency thanks to faster feed speed.
• Producing much smaller chips and your dust collection system will function more efficiently.
• Changing blades is effortless and does not require adjustment.
• No need to re-sharpen the blades any longer.
• Dramatically reduce the noise by more than 50%.

Note: We have changed the compatible blades from 15x15x2.5mm-R150 blades to 15x15x2.5mm-R150-4R0.5 blades. Please confirm which blades you need before purchasing the spare knives and do not use the different blades mixedly. (If you are not sure which blades you purchase, please do not hesitate to contact us)

 # To properly align the inserts, please tighten them to approximately 6 Newton-meter torque.

In case you’re unable to locate a cutter head that matches your machine model, we also provide an option for a custom cutter head.