Review on Rotary Hardware Accessories with Dynamic Flexibility by Jerry Mangum

I'm only giving us three stars because the junk broke before I even used it Die Collet was made of cheaper thin brass which broke before I put the tip in and the collet nut was some kind of plastic not metal and it broke before I used it. I like to build my own tools from broken tool parts, otherwise I'd be out of luck. For those of you having problems with collets I am posting a picture so you can see what I was able to get from a set of dremels that had 3 of the 4 collets that actually work. But I wouldn't recommend this product if you can spend a few bucks on a better product!