- 14MM X 1.25 & 18MM X 1.50 THREADS
- QUICKLY & EASILY CLEANS DIRT, CARBON, CORROSION AND METAL PARTICLES FROM SPARK PLUG THREADS
- CAN RESTORE MINOR CROSS THREADING DAMAGE, SAVING EXPENSIVE THREAD INSERTS REPAIRS
- DOUBLE ENDED & TAPERED ENDS FOR EASY STARTING
- SUITS BOTH 14MM X 1.25 & 18MM X 1.5 THREADS
- DRIVEN BY A 21MM (13/16") SPARK PLUG OR DEEP SOCKET
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