Sealey 1/2" Drive Magnetic Hexagon Spark Plug Socket 1/2" 21mm

Sealey

Sealey 1/2" Drive Magnetic Hexagon Spark Plug Socket 1/2" 21mm

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Best price incl. delivery
£11.36

Free delivery included

Prices range from £11.36 to £13.95 across 4 stores

Manomano.co.uk
Manomano.co.ukFree delivery
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4 stores
Screen2"
BrandSealey
EAN5024209325318

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Manomano.co.uk

Manomano.co.uk

Best price
£11.36

incl. delivery

£11.36 · Free delivery
Go to store
Rapidonline.com

Rapidonline.com

£15.39

incl. delivery

£11.40 + £3.99 delivery
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Tooled Up

Tooled Up

£19.90

incl. delivery

£13.95 + £5.95 delivery
Go to store
Tooled-up.com

Tooled-up.com

£19.90

incl. delivery

£13.95 + £5.95 delivery
Go to store

About this product

The 21mm magnetic spark plug socket with 1/2" drive is designed for larger spark plug applications typically found in commercial vehicles, older engines and certain performance applications. This larger diameter accommodates the bigger spark plug bodies whilst maintaining the same professional quality and magnetic retention that makes spark plug servicing efficient and frustration-free. The magnetic feature is particularly valuable when working overhead or in awkward positions where maintaining control of components is essential. Engineered from forged Chrome Vanadium steel with hardening and tempering treatment, this 21mm socket delivers the strength and longevity demanded by professional technicians. The chrome plated surface provides lasting protection against workshop chemicals and moisture whilst ensuring smooth operation. The 1/2" square drive offers universal compatibility with standard ratchets, extensions and torque wrenches for precise spark plug installation. Features and Benefits: • 21mm size accommodates larger spark plugs • Integrated magnet secures plugs during handling • Forged Chrome Vanadium steel construction • Hardened and tempered for enhanced durability • Chrome plated finish resists corrosion • 1/2" square drive for standard tool compatibility Specifications: Brand: Sealey Drive: 1/2"Sq Length: 62mm Nett Weight: 0.14kg Size(s): 21mm

Price History (Last 30 Days)

Lowest Price Ever

£11.36

Manomano.co.uk · 13 May 2026

Highest Price

£19.90

Tooled Up · 28 Apr 2026

No price changes recorded yet — we’ll show changes here as prices move.

Frequently Asked Questions

What is the cheapest price for Sealey 1/2" Drive Magnetic Hexagon Spark Plug Socket 1/2" 21mm?
The cheapest price for Sealey 1/2" Drive Magnetic Hexagon Spark Plug Socket 1/2" 21mm is £11.36 (including delivery) from Manomano.co.uk.
How many stores sell Sealey 1/2" Drive Magnetic Hexagon Spark Plug Socket 1/2" 21mm?
We compare prices from 4 different UK stores to help you find the best deal for Sealey 1/2" Drive Magnetic Hexagon Spark Plug Socket 1/2" 21mm.
Does Sealey 1/2" Drive Magnetic Hexagon Spark Plug Socket 1/2" 21mm come with free delivery?
Yes! 1 of our partner stores offer free delivery on Sealey 1/2" Drive Magnetic Hexagon Spark Plug Socket 1/2" 21mm.
What is the price range for Sealey 1/2" Drive Magnetic Hexagon Spark Plug Socket 1/2" 21mm?
Prices for Sealey 1/2" Drive Magnetic Hexagon Spark Plug Socket 1/2" 21mm range from £11.36 to £13.95 across different retailers.
Independent price comparison·Prices updated regularly

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