The helical cutterhead is designed for upgrading Steel City 6-in. jointers, including:

• Steel City 40615 6-Inch Deluxe Jointer
• Steel City 40625 6-Inch Deluxe Jointer
• Steel City 40640 6-Inch Jointer

This spiral helical cutter head with 4 cutting wings will take your jointer to the next level, cutting much smoother and reducing more than 50% of the noise. It is designed to perfectly replace the G6/63 cutter head for 6″ jointers. Our spiral helical cutterheads are well-built by 5-spindle CNC machines, resulting in excellent coaxiality. The tungsten carbide insert knives are made from 100% raw material, so compared with HSS knives, we provide you 

1. Producing a better wood surface finish that reduces additional sanding.
2. The shear cut virtually eliminates tear-outs and kick-backs.
3. 40 times longer lifetime from our proud carbide inserts.
4. Producing much smaller chips and your dust collection system will function more efficiently.
5. Changing blades is effortless and does not require adjustment.
6. No need to re-sharpen the blades any longer.
7. Eliminating over 50% of noise.
8. Please tighten the inserts to approximately 6 Newton-meter torque to properly align them.
9. 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.