Remove broken hardware quickly. Self-centering left hand bits grab damaged fastners. The combinations of LH rotation and heat generated removes most problem hardware. Includes 2X-OUT Damaged Screw Removers fits #6-10, and 4 DRILL-OUT Broken Bolt and Micro Screw Extractors fits #10,1/4in.,5/16in.,and 3/8in.. Plastic case included.