If you need to drill holes in masonry or concrete, you may have heard about, or come across, hammer drills. There are two ...

We love this hacked-together mini drill by [BuenaTec] that uses a DC7.2V 10K-RPM motor with a 1/8” Dremel chuck added on. Power is supplied by a USB-A cable with the data wires cut off ...

and the instructions for proper tightness are a bit vague. If the drill is left for long periods, the belt should be loosened so it doesn’t warp. We think our drill press was over-tightened and ...