Step bits & unibits are helpful when trying to get the precise size you need in a multitude of materials. From steel to plastics and just about anything else. Step Bits And Unibits use a sharp flute or two to cut away the inner edge of material until it reaches the desired size. This helps avoid the need for a large set of drill bits, and a unibit keeps the finished hole deburred much better than a regular drill bit. ToolKing.com has a great selection of Step Bits And Unibits to make your next project a breeze. Browse our current selection of Step Bits And Unibits at the lowest prices on the market.