This worked well for the first few weeks, until I tried to use it to cut a bit sturdier material. The blade and collet popped right out of the sleeve. No amount of re-assembly and tightening would allow it to hold the blade with any amount of sturdiness. The collet would always just pop right out when pressing hard. It seems the manufacturing tolerances must not be great for a collet to be able to pop right through the containing sleeve.