Alden 1257P Micro Grabit Broken Bolt Extractor #1
Micro Grabit #1 extractor can quickly and easily remove most broken bolts No. 5 and 6 (3mm) from wood, metal or plastic;can even drill  (flip style) on center using a 1/8 in. variable speed reversible rotary power tool (slow speed) or quality power screw driver with expandable chuck. .  Can drill up to grade 8 and class 10.9 fasteners.  Precision engineered for multiple extractions and maximum performance. Serrated extracting end of tool results in greater torque for hard to remove bolts. For further information call 800-832-5336  8am - 5pm EST M-F.