Apex 3/8” Drive Socket Adapter 1/4" Hex Bit Holder Quick Release Chuck QR-308 QR-308 Apex Female Square Drive Bit Holder, Quick Releasing Chuck. Hex Opening: 1/4'' Square Drive: 3/8'' Overall Length: 1-3/4'' / 45mm Body Diameter: 3/4'' / 19mm Sleeve Diameter: 3/4'' / 19mm Opening Depth: 61/64'' / 24mm
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