Irwin 73628ZR Jobber Drill Bit 7/16 in Dia 5-1/2 in OAL Spiral Flute 7/16 in Dia Shank Reduced Shank

High-speed steel features a black body and gold flute Turbomax tip for burr-free holes; 3/8 in reduced shank fits all 3/8 in drills. Exact centering; no walking on straight and curved surfaces. A 3-flatted shank on 3/16 in and above for better chuck grip. Jobber length.