The 21mm socket serves specialist applications in automotive and machinery work where this less common metric size is specified. This 3/8" drive variant pushes the capabilities of this drive size, making it ideal for situations where accessibility is paramount but adequate torque is still required. Cold-forged from Chrome Vanadium steel and heat-treated for enhanced strength, this socket handles demanding fastening tasks. The innovative WallDrive® configuration grips fasteners on their flats, de
The only currently-tracked offer for this product.
| Merchant | Price | Shipping | Total | Rating |
|---|
| Tooled Up· new | £4.49 | £5.95 | £10.44 | — |
Price shown as reported by the merchant — final price is confirmed at checkout. See Affiliate Disclosure.
