www.astrotools.com ONYX 21PC TURBOSTEP HSS MECHANICS LENGTH 1/16" - 3/8" DRILL BIT SET MODEL NO. TS21 MODEL NO. TS29 ONYX 29PC TURBOSTEP HSS REDUCED SHANK MECHANICS LENGTH 1/16" - 1/2" DRILL BIT SET Spiral uted 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 dicult to start drilling into U.S. Patent Nos. 1,007,583 and 11,007,584 Other Patents Pending TURBOSTEP DRILL BITS ARE HERE!