Add to Wish List Compare Quick view BAC #:UNIBIT UNIBIT STEP DRILL BITS IRWIN Single-fluted cutting edge assures true round holes, and allows greater control with less vibration. Ideal for drilling holes in thin metals such as mild steel, copper, brass, aluminum, plexiglass, wood, and laminate. Unibit-1 Hole Sizes... MSRP: Now: $32.09 - $134.21 Was: View Price Breaks MSRP: Now: $32.09 - $134.21 Was: Compare Quick view Qty in Cart: 0 Price: MSRP: Now: $32.09 - $134.21 Was: Subtotal: