Sealey 3/4" Drive Deep Hexagon Impact Socket Metric 3/4" 21mm
by Sealey

Product Details
- Brand
- Sealey
- Condition
- new
- MPN
- IS3421D
- GTIN
- 05054511142761
- Category
- Hand Tools
£23.40£34.57-32%
Best price from 3 shops
Like
Save for later
Add to favourites
Share
Compare 3 prices for Sealey 3/4" Drive Deep Hexagon Impact Socket Metric 3/4" 21mm by Sealey. The cheapest price is £23.40 at Electrical World, with prices up to £29.99. Prices last checked on 25 February 2026.
Compare Prices for Sealey 3/4" Drive Deep Hexagon Impact Socket Metric 3/4" 21mm(3 shops)
E
Electrical WorldBest Price
Out of stock£23.40
£34.57-32%
£24.95
£32.34-23%
£29.99
£38.99-23%
Description
The Sealey 3/4" Drive 21mm Deep Hexagon Impact Socket is specifically sized for common wheel nut and hub applications across many European and Asian vehicles. This versatile 21mm socket is particularly valuable for tyre services, brake maintenance, and suspension work where deep access to recessed fasteners is essential. Featuring drop-forged chrome molybdenum construction, this impact socket provides the exceptional strength and durability demanded by professional technicians. The WallDrive® configuration engages the flat sides of hex fasteners, delivering superior grip whilst protecting against the rounding damage that conventional sockets can cause. The deep design ensures you can reach fixings on extended studs and work effectively with recessed components. This socket is hardened and tempered specifically for air impact wrench use, maintaining its structural integrity even under sustained high-torque operation. The phosphate finish offers excellent corrosion resistance, preserving the socket's performance and appearance throughout its working life. Features and Benefits: • 21mm deep socket for European and Asian vehicle applications • WallDrive® technology prevents fastener damage • Drop-forged chrome molybdenum steel construction • Phosphate finish resists workshop corrosion • Designed for air impact wrench durability • Lifetime guarantee provides reassurance Specifications: Brand: Premier Depth: Deep Drive: 3/4"Sq Material: Chrome Molybdenum Nett Weight: 0.36kg Size: 21mm
Shop Reviews
No reviews yet. Bought this product? Share your experience with one of the shops below.
Frequently Asked Questions
- What is the cheapest price for Sealey 3/4" Drive Deep Hexagon Impact Socket Metric 3/4" 21mm?
- The cheapest price for Sealey 3/4" Drive Deep Hexagon Impact Socket Metric 3/4" 21mm by Sealey is £23.40 at Electrical World. Prices are compared across 3 UK shops and updated daily.
- How many shops sell Sealey 3/4" Drive Deep Hexagon Impact Socket Metric 3/4" 21mm?
- Sealey 3/4" Drive Deep Hexagon Impact Socket Metric 3/4" 21mm by Sealey is available from 3 UK shops, with prices ranging from £23.40 to £29.99.
- Is Sealey 3/4" Drive Deep Hexagon Impact Socket Metric 3/4" 21mm on sale?
- Yes, Sealey 3/4" Drive Deep Hexagon Impact Socket Metric 3/4" 21mm is currently on sale with up to 23% off. The best price is £23.40 at Electrical World.
More from Sealey
-37%Sealey VS0564 Digital Tyre Tread Depth Gauge, Multi
£15.95£25.32
3 shops
-34%Sealey Tyre Pressure Gauge Digital With Leader Hose & Quick Release
£34.95£52.95
3 shops
-22%Sealey TST/PG99 Tyre Pressure Gauge GS/TUV Approved
£21.48£27.54
3 shops
-36%Sealey 5 Piece 1/2" Drive Pentagon Brake Caliper Socket Set for Bendix and Girling Brakes
£26.51£41.42
3 shops
-23%Sealey CVJ Boots Installation Tool
£15.95£20.71
3 shops
-41%Sealey 7 Piece 1/2" Drive Locking Wheel Nut Removal Set
£65.78£111.49
3 shops