Irwin 10225 Step Drill Bit Set 41 Hole Sizes, 1/32 in_1/16 in Step Increments, Black Oxide Finish 203168678 Chest Size - Maximum 58

Chest Size - Maximum 58 in

Sulfuric Acid 50%

Required Door Thickness 1-3/4 in

Double Face

Irwin 10225 Step Drill Bit Set 41 Hole Sizes, 1/32 in_1/16 in Step Increments, Black Oxide Finish 203168678 Chest Size - Maximum 58Step Drill Bit Set, High Speed Steel, Black Oxide, 1 8 in to 1 2 in, 13 16 in to 1 3 8 in, 3 16 in to 1 2 in, 3 16 in to 7 8 in Size Range, Straight with Three Flats, Number of Drill Bits 3, Shank Hex Size 1 4 in, 3 8 in, 7 16 in Material Machining High Speed Steel Shank Type Hex Finish Machining Black Oxide Decimal Equivalent 0. 125, 1. 375 Cutting Direction Right Hand Number of Flutes 1 Number of Pieces 4 Step Thickness 1 32 in, 1 16 in Drill Bit