Drill America 7 Piece Screw Machine/Stub HSS Drill Bit Set, Plastic Pouch Case, D/AST

Set contains 1/8", 3/16", 1/4", 5/16", 3/8", 7/16" and 1/2" stub length drill bits in plastic pouch case Screw machine drills are also know as stub or stubby drills. They have a short, rugged construction performs well in a broad range of materials. 135° split point tip for fast penetration and accurate drilling and round shank for use in a wide range of tool holding systems Popular in the automotive and construction industries. They are often used in screw machine setup where spindle clearance is limited Surface treated with abrasion-resistant black oxide these short, rugged construction performs well in a broad range of materials such as aluminum, brass, copper, metal, plastic and wood