SPARK PLUG 21MM X 1/2' DRIVE CRV
Features
- 21 mm socket size — perfectly fits standard 21 mm spark plug hex heads.
- ½″ (12.7 mm) drive square — integrates with standard half-inch ratchets and extensions.
- Chromium-Vanadium (CR-V) steel construction — durable material for long life under service use.
Benefits
- Precision fit: Ensures correct 21 mm plug engagement, reducing risk of rounding plug hex.
- Trade-durable: The CR-V build stands up to repeated use in service workshops.
- Kit-ready: Standard ½″ drive makes it easy to integrate into existing socket sets without needing adaptor.
- Space-efficient: Easy to carry as vehicle service or maintenance tool.
Extra Information
- Use with a short ratchet and extension where engine-bay clearance is tight; the ½″ drive offers good leverage without bulk.
- Keep the socket clean of grit, oil and foil debris from spark-plug removal—this preserves the seat for correct plug and extension fit.
- For corrosion-stuck plugs, break them loose with controlled torque to avoid damaging the hex head or socket — the socket size and fit make this safer.
Pro Tip
- When inserting a new spark plug, first run it down by hand then switch to this socket and ratchet for final snug-fit — the correct socket fit reduces risk of over-torque or angled finish.
Specifications
| Description | Spec |
|---|---|
| Brand | Tork Craft |
| Cat No. | TC72021 |
| Product Type | Spark-Plug Socket — 21 mm × ½″ Drive |
| Socket Size | 21 mm |
| Drive Size | ½″ (12.7 mm) |
| Material | Chrome-Vanadium (CR-V) Steel |
Safety
- Wear eye protection while removing spark plugs—old plugs may break or eject metal fragments.
- Use proper torque when installing new plugs—over-tightening can strip the threads, under-tightening can lead to poor ignition performance.
- Keep the socket properly seated on the plug hex to avoid rounding the plug and damaging the engine head.
