IMPACT SOCKET ADAPTOR SET 1/4" 3/8" 1/2" 3/4" Drive step up/down reducer. 1/4" Hex Drive To 1/4" Sqaure Drive : 65mm long. 1/4" Hex Drive To 3/8" Square Drive : 65mm long. 1/4" Hex Drive To 1/2" Square Drive : 72mm long.
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