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

About this tool

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 selection time during busy wheel change operations and improving overall workshop efficiency. Features and Benefits: • 21mm sizing – fits many Japanese and Korean vehicle wheel nuts • Chrome Molybdenum construction – superior strength and durability • Double-sleeved protection – prevents damage to wheels and fasteners • 6-point configuration – even load distribution reduces rounding risk • Colour-coded identification – speeds up socket selection in busy workshops Specifications

Retailer description · Tooled Up · Observed 12 Oct 2026. Check the retailer’s listing for full specifications and contents.