This drill was primarily used once to drill a hole in a thin metal door to install a peephole. Went to the big hardware stores to buy one but they wanted double the price for a piece this size. So I ordered the cheapest piece and got it in about 2 days. I don't know if this attachment is for serious metalworkers or for regular casual use, but it worked for me. It looks and feels decent, but I can't tell if it holds a blade well yet.