7 Piece, Titanium Bit Set, Contains 1 Each Of The Following: 1/16", 5/64", 3/32", 7/64", 1/8", 5/32" 1/4", 135 Point, Titanium Coating Resists Heat & Lasts 3 Times Longer Than Black Oxide, Recommended For Drilling Wood, Plastic, Wallboard & Plywood, For Moderate Use In Soft Metal, Brass, Bronze, Sheet Metal & Aluminum.