Brand: RUKO Item: Drill bit Replacement: No Material: 5% cobalt high-speed steel (HSSE-Co5) Application: Hole cutting Finish: Bright Overall Length: 2.8in (71mm) For Use On: Steel, brass, plastic, stainless steel, bronze, cast iron and aluminum Drill Bit Type: Step Drill Bit Size: 1/4in, 5/16in, 3/8in, 7/16in, 1/2in, 9/16in, 5/8in, 11/16in and 3/4in Step Drill Size: #3 Number Of Hole Sizes: 9 Point Cut: Split Shank Type: 3/8in diameter 3-surface Point Angle: 118 degrees RUKO step drill bit, 9 steps, 1/4in, 5/16in, 3/8in, 7/16in, 1/2in, 9/16in, 5/8in, 11/16in and 3/4in, split point, 5% cobalt high-speed steel (HSSE-Co5), bright finish, 3/8in diameter 3-surface shank.
