Features and Benefits: 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: 3/8"; Recommended drill bit diameter: 7/32"; Low profile enables use in confined areas; Provide most torque of internal extractors; Engages fastener without a deep hole;
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