Review on 🔪 Lenox 30883 VB3 Vari Bit 4-8 Inch: Precision Cutting Power at Your Fingertips by Steve Cooper

Works great on sheet metal. Cuts holes quickly and evenly. Saves me a lot of time instead of using a few smaller regular bits and moving on to a larger one to keep the hole round. I've found that using a hammer drill and a non-slip metal drill bit and using oil to keep the tip of the drill bit cool helps.