Craftsman 21 mm X 3/8 in. drive Metric 6 Point Standard Socket 1 pc

Laser-etched size marking makes it easy to locate the right socket for the job. Great for working in low-lit or greasy environments. Permanent marking resists chipping, fading and corroding. Headlock grip gives more contact on the flats of the fastener for more turning force.

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UPC: 885911587167
Model Number: CMMT43584