IMPACT SOCKET ADAPTOR SET 1/4" 3/8" 1/2" 3/4" Drive step up/down reducer. IMPACT Drill Socket Adaptor 8PCS Hex Drive To 1/4" 3/8" 1/2" DR Square. The 1/4" (6.35mm) hex shank allows the adaptors to be used with Impact Drill / Drivers with a quick release systems or with a suitable chuck.
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