This cutterhead is a beauty that will remove material effortlessly. I installed is on my Makita 3-1/4 inch cordless planner. After installing it I noticed that the RPM stays much higher because the motor isn’t working as hard. The spiral cutterhead weighs more than the original so the belt does slip a little on start up and stop due the the extra inertial load. The cut is like glass and so much quieter. I can do cuts without hearing protection now.