Product details:

29 Piece Contractor Grade Drill Bit Set in metal caseSet includes 29 drill bits from 1/16 to 1/2 in 1/64 increments. Sizes in the set include: 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", 3/8", 25/64", 13/32", 27/64", 7/16", 29/64", 15/32", 31/64" and 1/2" Contractor grade drill bit manufactured from M1 High Speed Steel.For use in a wide range of materials in the iron and steel families such aluminum, iron, steel and other metal drilling.135 degree split point tip for self-centering and reducing thrust. Compared to a conventional 118 degree tip, these drills wont go "walking" on you.3-Flat shank creates an extra secure hold in your chuck.Black and gold surface treated