Sealey 1/2" Drive Impact Socket Metric for Alloy Wheels 1/2" 21mm

The 21mm variant covers a substantial range of vehicle applications, particularly many popular Japanese and Korean manufacturers, making it a frequently reached-for size in professional tyre fitting operations. This 1/2" drive impact socket combines the power-handling capabilities needed for impact tool use with the delicate touch required to protect expensive alloy wheels. Engineered from Chrome Molybdenum steel and subjected to precision hardening and tempering processes, this socket withstands the repeated shock loads of impact wrench operation without deformation or failure. The standout feature is its comprehensive sleeving - both external surfaces and internal walls are protected, creating a cushioned interface that prevents scratches, scuffs and marks on alloy wheels and their fixings. The 6-point design maximises contact with wheel nut flats, whilst the anodised coating provides excellent corrosion resistance. Colour-coding allows instant size recognition, reducing tool selecti