Astro Pneumatic Onyx 7-Piece Turbostep Aircraft Extension Length Drill Bit Set (TS7)

• Seven _” – ½” TurboStep drill bits in extra-long 12” standard known as Aircraft Length
• Spiral fluted PATENTED stepped-tip drill bits that simply outperform every conventional drill bit design in nearly all materials
• Extra length allows for additional reach in tight spaces or for drilling through extra thick material
• 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
• Every drill bit size is 12” long, _-½” by 1/16”