Suitable for the removal of broken studs and bolts. Left-hand tapered spiral design, tightens into pre-drilled stud/bolt as more torque is applied. Supplied on socket rail.Product Specification. Contents: 3/8"Sq/17mm Hex Drive; 2, 3, 4, 5, 6mm (36mm Length), 1/2"Sq/22mm Hex; 8, 10, 12, 14mm (45mm Length).
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