IVY Classic Industries is dedicated to producing a comprehensive, quality line of power tool accessories and hand tools. IVY Classic Swift Bore 12-Piece High Speed Steel Drill Bit Set contains jobber length drill bits for drilling steel, wood and plastic. These bits are roll forged, with a two tone finish and black oxide flutes with a bright outer grind and are constructed out of hardened and tempered high speed steel. They feature a general purpose 118-degree standard point and come packaged in a sturdy metal case with a hinged index. Bits are clearly visible with sizes marked on the case. This 12-piece drill set includes: 1/16, 3/32, 1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 3/8, 7/16, 1/2-inch drill bits. Shanks reduced to 3/8-inch.