Review on Enhanced Performance with POWERTEC Drilling Cobalt Collar 8 Inch by Tory Richardson

This worked for a couple of holes but it's not a very good drill bit and it tries to bite off too much wood at first so it bounces around a lot before hitting the wood really well. Because of this, you really need to have a firm grip on the mount, even when it's clamped. The holes are too close to the edge and accuracy is lost with use, likely due to wear caused by the jump drill. When fewer than 20 holes were drilled, the clear plastic portion of the bracket began to crack, starting with the bottom screw. It broke completely on my 22nd hole. It's definitely not worth the money I spent and not durable enough. Now I have to fix the problems he caused.