Hanson (HAN53203) 3/16" HEX HEAD MULTI-SPLINE EXTRACTOR
HAN53203 Features: -Designed to remove broken studs, bolts, socket screws and fittings for high torque applications.-Aggressive left hand spiral design for extra gripping power.-Hex head size: 1/2".-Bolt diameter: 5/16".-Recommended drill bit diameter: 3/16".-Hex Head Multi-Spline Screw Extractor - 3/16''''. Warranty: -Lifetime warranty does not cover abuse.