Irwin Industrial Tools 314018 Black Oxide Drill Bit Set, 18-Piece 314018 This IRWIN 18-Piece Black Oxide Drill Bit Set includes drill bits with a black oxide surface to resist corrosion. The 135° split point helps prevent walking for smooth control. These powerful drill bits come in a durable rubber-sided case for added impact resistance, and the sliding latch design provides added security. The Pro Set case features a full-length metal hinge pin for durability and easy-to-read markings for quick drill bit identification. FEATURES Black oxide on drill bits resists corrosion 135° split point helps prevent walking IRWIN drill bits come in a Pro Set case made of molded ABS resin for durability Durable rubber-sided case for added impact resistance Sliding latch design provides added security Black oxide on drill bits resists corrosion 135° split point helps prevent walking SPECIFICATIONS MATERIAL : High Speed Steel FINISH : Titanium Nitride SHANK TYPE : Straight CUTTING ANGLE STRING : 135 degrees BRAND : Irwin DIMENSIONS : 11.5 x 11 x 1.63 inches FLUTE TYPE : Spiral POINT STYLE : Split Point UPC : 024721063670 WEIGHT : 1.558 lb INCLUDES (2) 1/16" 5/64" (2) 3/32" 7/64" (2) 1/8" 9/64" 5/32" 11/16" 3/16" 13/64" 7/32" 1/4" 5/16" 3/8" 1/2"