Astro Tools TS7 ONYX 7pc TurboStep Aircraft Extension Length Drill Bit Set

Seven ⅛” - 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