Do not buy ang Tekton brand junk. I fa for their so called lifetime warranty. It works like this: you contact them they start to argue: the half broken edge on the bit is still usable, the gone chrome is a natural discoloration. When you send the forensic analysis on their chinese made junk, than they graciously allow you to send it back(pay for their low quality mistake) and even if the product perfect, they are so generous: they will send a new one. And if you look for the manager: David (Daniel?) Feel his duty is to deny any defect on their products. Buy anything else but Tekton.