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| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £22.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £22.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £5.99 | 2 to 4 working days |
| Next Day | £9.99 |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £22.95 | 5 to 7 working days |
Product Number: SX03921
Standard impact sockets risk damaging alloy wheels and nuts a costly mistake on any vehicle. The Sealey SX03921 Ultra-Power Impact Socket is specifically engineered to remove that risk. At 21mm with a 1/2" square drive, it is five times stronger than conventional socket designs and tested to 500Nm. An innovative protective metal colour-coded ring prevents the socket wall from spreading under load, while the 6-point socket is sleeved with an insert to prevent damage to alloy wheels and nuts. Backed by a lifetime guarantee*, the SX03921 is built for professional and workshop use where both performance and wheel protection matter.
Key Features:PartsForMachines is a premier e-commerce platform, founded in 2019 in Warwickshire, UK, specializing in aftermarket parts and services for construction, agriculture, and industrial machinery. We offer an extensive catalog of over 500,000 products. Standard delivery: 1–3 working days within UK mainland. We are proud to be an authorised distributor, giving customers extra confidence when purchasing genuine products from us. In addition, we provide a 30-day return policy for eligible items.
| Model No | SX03921 |
|---|---|
| Brand | Premier |
| Drive | 1/2"Sq |
| Nett Weight | 0.25kg |
| Size | 21mm |
| Engine Parts | Product Number | Product Name | Recommended Units | Product Price |
|---|
Standard Delivery: £5.99
Next Day Delivery Available
Delivery Estimate: 2 to 4 working days
Save Extra With 1 Offer
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| Technical Specification | ||||||
|---|---|---|---|---|---|---|
| PRODUCT NUMBER | SX039 | SX03022 | 82981 | 82972 | 09539 | 30630 |
| Type | Wheel Nut Socket | Wheel Nut Socket | Wheel Nut Socket | Wheel Nut Socket | Wheel Nut Socket | Wheel Nut Socket |
| Brand | Premier | Sealey | ||||
| Drive Size (Inch) | 1/2 | 1/2 | 1/2 | 1/2 | 1/2 | 1/2 |
| Length (mm) | 21 | 22 | ||||
| Model No | SX039 | SX03022 | ||||
| Weight (kg) | 78 | 25 | ||||
A. The SX03921 is a 21mm socket with a 1/2" square drive.
A. It is five times stronger than the conventional design and has been tested to 500Nm.
A. The socket is sleeved and features an insert specifically designed to prevent damage to alloy wheels and nuts.
A. The innovative protective metal colour-coded ring prevents the socket wall from spreading under load.
A. Yes, it is backed by a lifetime guarantee*.
A. Similar alternatives include AK2243, CV001, CV004, and CV006. Please check individual listings to find the most suitable option for your application.
A. Next-day delivery is available on most products and will appear as an option at checkout where eligible.
A. Yes - WhatsApp us on 07754 288583 with any questions about specifications, suitability, or compatibility, and we'll help you choose the right product.
A. WhatsApp us on 07754 288583 with photos of the item and packaging, and we'll resolve the issue in line with our returns policy.
A. In-stock orders placed before 14:30 Monday to Friday are usually dispatched the same day.
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