Review on SainSmart Genmitsu 10Pcs Router Spiral: Precision Cutting and Routing Tool Set by Seth Singh

After about an hour of cutting, this attachment will start to form bands and will not remove the cut material, so it needs frequent cleaning. Tried a second cut with a new nozzle and the same thing happened. I cut 1/2 poplar on X-Carve. The pieces I cut out had to be chipped and sanded hard to be smooth.