Astro Pneumatic ONYX 21PC TURBOSTEP

� Spiral fluted stepped tip drill bits that simply outperform every conventional drill bit design in nearly all materials� 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 and mechanic�s length for superior access in cramped spaces