Awesome Drilling

We’ve always assumed that the only shape you could drill with a drill bit was a circle. But it turns out that with special bits, other shapes are possible. In this video, a machinist shows how these unique bits can drill a perfect triangle out of a piece of aluminum as it spins on a lathe. The original video from Mehamozg shows bits drilling some other shapes.

If you’re using a handheld power drill, it’s hard to know if you’re drilling holes straight. The BullseyeBore Core fixes that. This patent-pending gadget attaches to your drill chuck and uses a laser to project concentric circles. Keep the circles aligned, and you’ll always get a perfectly straight hole. Price shown is for a set of two that fit different drill bit lengths.