29 Piece, Gold Oxide, Drill Bit Set, Consists Of: 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" & 1/2", Versatile General Purpose Drill Bit Set Features Gold Oxide Coating, Shanks That Fit Standard 3-Jaw Drills, Use In Drilling Wood, Plastic & Light Gauge Metal, Bits 1/8" & Larger Feature 135 Degree Split Points On The Tips To Reduce Bit Walking, Gold Oxide Coating Provides Longer Bit Life By Resisting Heat Buildup, Standard Shank Diameters Fits Standard 3-Jaw Drills, Both Corded & Cordless, Universal Drilling Applications Designed For General Purpose Drilling In Wood, Plastic & Light Gauge Metal.