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Sealey

Sealey 3/8" Drive Hexagon WallDrive Socket Metric 3/8" 21mm

Check contents · United Kingdom

All retailer prices (3)

Item prices shown in GBP. Delivery is separate. We may earn a commission when you buy through our retailer links.

Power Tools Direct

Reported available

Observed 15 Oct 2026

£3.22

Delivery: check retailer

Visit Power Tools Direct ↗

Tooled Up

Reported available

Observed 12 Oct 2026

£5.49

Delivery: check retailer

Visit Tooled Up ↗

My Tool Shed

Reported available

Observed 12 Oct 2026

£5.49

Delivery: check retailer

Visit My Tool Shed ↗

Pack contents — retailer title

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About this tool

The 21mm socket is the standard size for wheel nuts on many vehicles, particularly Japanese and American models. This makes it absolutely essential for tyre servicing, wheel maintenance and general automotive work, seeing regular use in both professional workshops and home garages. Cold-forged from Chrome Vanadium steel with full hardening and tempering, this frequently used socket withstands intensive wheel work demands. The WallDrive® technology is invaluable for protecting wheel nut flats whilst ensuring secure engagement, and the knurled ring provides practical handling. Features and Benefits: • 21mm hexagon size - standard wheel nut size • Cold-forged Chrome Vanadium steel for strength • WallDrive® configuration for wheel applications • Half chrome, half satin finish • Knurled ring for control • Lifetime guarantee Specifications: Brand: Premier Depth: Standard Drive: 3/8"Sq Material: Chrome Vanadium Nett Weight: 0.10kg Size: 21mm

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

Product details

Brand: Sealey
Barcode / GTIN: 05024209335751
Category: Hand tools
Pack format: Check contents

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