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

Product Details
- Brand
- Sealey
- Condition
- new
- MPN
- SX03921
- GTIN
- 05054511358773
- Category
- Hand Tools
£23.36£33.23-30%
Best price from 3 shops
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Compare 3 prices for Sealey 1/2" Drive Ultra Power Impact Socket Metric for Alloy Wheels 1/2" 21mm by Sealey. The cheapest price is £23.36 at Electrical World, with prices up to £28.99. Prices last checked on 25 February 2026.
Compare Prices for Sealey 1/2" Drive Ultra Power Impact Socket Metric for Alloy Wheels 1/2" 21mm(3 shops)
E
Electrical WorldBest Price
Out of stock£23.36
£33.23-30%
£24.95
£31.14-20%
£28.99
£37.99-24%
Description
This 21mm socket with 1/2" square drive is designed for larger alloy wheel nuts typically found on SUVs, vans, and performance vehicles. Constructed with Sealey's Ultra Power technology, this socket is five times stronger than conventional designs and has been tested to 500Nm, ensuring it can handle the higher torque requirements of larger vehicles. The innovative design features a protective metal colour-coded ring that prevents the socket wall from spreading under high-impact loads, crucial when working with larger, more tightly torqued wheel nuts. The six-point socket is sleeved with a protective insert to prevent damage to both alloy wheels and nuts, making it ideal for premium SUVs and commercial vehicles where wheel finish must be preserved. Backed by Sealey's lifetime guarantee, this 21mm variant is essential for workshops servicing a diverse range of larger vehicles. Features and Benefits: • 21mm size suits larger vehicles including SUVs, vans and performance cars • Five times stronger than conventional designs, tested to 500Nm • Protective metal colour-coded ring prevents wall spreading under load • Sleeved six-point design with insert protects alloy wheels and nuts • 1/2" square drive for use with impact wrenches and air tools • Lifetime guarantee included Specifications: Brand: Premier Drive: 1/2"Sq Nett Weight: 0.25kg Size: 21mm
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Frequently Asked Questions
- What is the cheapest price for Sealey 1/2" Drive Ultra Power Impact Socket Metric for Alloy Wheels 1/2" 21mm?
- The cheapest price for Sealey 1/2" Drive Ultra Power Impact Socket Metric for Alloy Wheels 1/2" 21mm by Sealey is £23.36 at Electrical World. Prices are compared across 3 UK shops and updated daily.
- How many shops sell Sealey 1/2" Drive Ultra Power Impact Socket Metric for Alloy Wheels 1/2" 21mm?
- Sealey 1/2" Drive Ultra Power Impact Socket Metric for Alloy Wheels 1/2" 21mm by Sealey is available from 3 UK shops, with prices ranging from £23.36 to £28.99.
- Is Sealey 1/2" Drive Ultra Power Impact Socket Metric for Alloy Wheels 1/2" 21mm on sale?
- Yes, Sealey 1/2" Drive Ultra Power Impact Socket Metric for Alloy Wheels 1/2" 21mm is currently on sale with up to 30% off. The best price is £23.36 at Electrical World.
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