VB-6 VARI BIT STEP DRILL BIT UNIBIT-10 1 Feature high speed steel construction and steam oxide coatingPatented design two cutting flutes allow for clean burr-free holesCust through materials faster than standard bitsEliminates the problem of tip breakage on standard drill bits Cutting Diam: 3/8 in, 1/2 in, 3/8 in [Min], 1/2 in [Max]Applicable Materials: Most Metals, Stainless SteelCutting Direction: RightCutting Edge Material: HSSMeasurement Type: FractionalNo. of Flutes: 2No. of Steps: 1Shank Diam: 3/8 inSpiral Angle: 0 StraightStep Depth: 1/8 inTool Shape: Tree - Step DrillQuantity: 1 per packWt.: 0.06 lb