An impact adaptor made from strong Chromium Molybdenum steel and hardened to HRC 43-45. Adaptor 1" Female x 3/4" Male. US PRO Tools 3 Piece Hand ratchet Set 1/4" 3/8" 1/2" In a Foam Tray 4192. US PRO Tools 1/4" DR 72T Ratchet With Composite Handle 4232.
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