The description should include a warning that this drill should only be used for rough work with an EXTREMELY HEAVY, LARGE, slow rotating (less than 350rpm) drill. Like a Milwaukee electric angle drill at low speed. I bought it hoping it would be very sharp (it isn't) and would use my very powerful 18 volt Makita drill at low speed to make a clean hole in wood doors for a 2-1/8"" doorknob .I was dead wrong This drill will rip your arm off and probably destroy your $500-2000 door..Like anything made in China today, if you go for scrap you get scrap The center hole is so aggressive that it rips straight into the wood. You can't be careful or move slowly. Press and hold the switch! PS. If you're a cowboy (fly past your pants) you've got the most powerful drill that money can buy, and need to drill a lot of holes in a rough frame, that's a bit.