Dormer M9003 Screw Extractor M8 M12

General description The Dormer M9003 Screw Extractor is designed for the effective removal of broken right-handed bolts and screws from threaded holes without causing damage to the threads. This tool operates counter-clockwise and is suitable for bolt sizes ranging from M8 to M12. Technical specifications Bolt Size: M8 - M12 Drill Size for Low/Medium Tensile Screws: 4mm Drill Size for High Tensile Screws (+75 tons/sq.inch): 4.2mm Bolt Size Imperial: 5/16 - 7/16in Drill Size for Low/Medium Tensile Screws (Imperial): 5/32in Drill Size for High Tensile Screws (+75 tons/sq.inch) (Imperial): 11/64in Cutting Diameter Step: 3.18mm Cutting Diameter Second Cutting Step (DC_2): 6.4mm Clamping Width (WSC): 4.8mm Clamping Length (LSC): 7.5mm Overall Length (OAL): 68.7mm Net Weight: 14g Installation It is necessary to drill a guide hole of proper size before using the extractor.