Description
Overview:
The Sealey Spark Plug Socket 21mm 1/2" square drive (12.7mm) is a deep-reach socket designed for removing and installing spark plugs cleanly and safely. Made from cold-forged Chrome Vanadium steel, it is hardened, tempered, and chrome plated for long service life in busy garages and home workshops. A fully polished mirror finish with a knurled ring gives better grip when starting threads by hand. The internal insert grips the plug's ceramic insulator to help extract plugs from deep wells without damage. Suited to petrol engines in cars, vans, motorcycles, and small machinery, it works with standard 1/2" drive ratchets, breaker bars, torque wrenches, and extension bars. Sealey Part No. S12SP14 offers reliable performance for routine servicing and repairs.
Key Features:
- 21mm hex size for common spark plug fittings across automotive and small-engine applications
- 1/2" square drive (12.7mm) for use with standard UK ratchets, extensions, and torque wrenches
- Cold-forged Chrome Vanadium steel for high strength and durability under daily workshop use
- Hardened, tempered, and chrome plated to resist wear and corrosion
- Deep-reach pattern for accessing plugs in recessed wells and narrow plug tubes
- Insert grips the ceramic insulator to aid extraction and reduce risk of breakage
- Fully polished finish with a knurled ring for improved finger control during hand-starting
- Smooth interior and accurate sizing to seat securely on the plug hex
- Suitable for controlled tightening with a torque wrench to manufacturer specifications
- Easy to clean and maintain for consistent performance over time
Typical Applications:
Servicing and replacement of spark plugs in passenger cars, light commercial vehicles, motorcycles, lawn mowers, generators, garden tractors, and small petrol-powered equipment. Useful for engines with deep plug wells, including multi-valve heads where access is restricted. Ideal for routine maintenance, diagnostics, and plug changes in home garages and professional workshops.
Also known as:
21mm plug spanner, deep plug socket, ignition plug socket, plug removal socket, ceramic-grip plug socket, 1/2 inch drive plug socket (12.7mm), deep-reach spark plug remover, spark plug extraction socket.
Product Specifications
| L&S Part No. | SEAS12SP14 |
|---|---|
| Manufacturer | Sealey |
| OEM No. | 12SP14 |
| Unit of Sale | 1 |
| Size | Height: 126mm x Width: 32mm x Depth: 26mm |
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