\uD83D\uDD27 US PRO 1/2\"" Drive 21mm Scaffolders Impact Socket \u2014 52mm Length\n\nDurable US PRO 21mm scaffolders impact socket designed for professional scaffolders, mechanics and workshop use. Manufactured from Cr-Mo for strength, this impact-rated socket includes a retaining pin and O-ring to secure the socket during elevated or high-vibration applications.\n\n\u2705 Key Features\n\n--Drive: 1/2\"" Drive \u2014 fits 1/2\"" ratchets, breaker bars and impact tools.\n--Size: 21mm metric socket for common scaffold and fastener sizes.\n--Length: 52mm overall \u2014 shallow/medium reach for scaffold fittings.\n--Internal depth for nut: approx. 25mm.\n--Retention: Supplied with retaining pin & O-ring for secure fitment.\n--Material: Chrome Molybdenum (Cr-Mo) for increased strength and durability.\n--Finish: Protective phosphate finish for workshop resistance.\n--Impact rated: Suitable for use with impact wrenches when used with impact-rated accessories.\n\n\uD83D\uDCE6 What\u2019s I.