If you do buy one of these, I strongly suggest pulling the fuse and checking it. Also ensure the brushes are fully installed as in not poking out of the drill body at all as this could result in sparks flying from the drill risking a fire. The one I got had a bad fuse out of the box and kept blowing replacements til I opened the control plate and found that the fuse holder had been mis-wired causing a short. Fixed that and found one of the brushes had worked loose from the stator. Screwed it back in and it now works flawlessly. Beats the everlovin heck out of skating drillbits in a hand drill