About This

• Spiral fluted PATENTED stepped-tip drill bits that simply outperform every conventional drill bit design in nearly all materials
• Patented design eliminates bit walk and the need for pilot holes
• Excels on hard alloys, sheet metal, and imperfect parts that are difficult to start drilling into
• Precision ground from heat treated quality M2 High Speed Steel and Onyx oxide coated to prevent chip build-up
• Three-flat shanks, reduced shanks above 3/8", and mechanic’s length for superior access in cramped spaces

Overview

• Material : High Speed Steel (HSS)
• Cutting Diameter : 0.06 Inches
• Finish Type : Onyx Oxide
• Shank Type : 3-Flat
• Brand : AP Astro Pneumatic Tool Company