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Socket 1/2" 21 mm Hartsson 12-point model 17C321Z
Summary description:
1/2" drive 21 mm 12-point socket by Hartsson, model 17C321Z. Designed for use with 1/2" ratchets and wrenches, this 12-point socket provides improved engagement on hexagonal fasteners and limited-access bolts. Suitable for automotive repair, machinery maintenance and general mechanical work. Made to fit standard 1/2" drive tools and deliver reliable torque transfer.