| Material | Alloy Steel |
| Screw Type | Reverse / Left-Hand Thread (loosen counterclockwise) |
| Thread Size | 9mm – 10mm (fits standard spark plug threads) |
| Applicable Sleeve Size | 10mm |
| Compatible with | Standard 10mm socket wrench |
| Surface Finish | Polished for smooth handling and comfort |
| Design | Left-hand thread avoids tightening into broken spark plugs |
| Operating/Storage Temp | Insert into broken spark plug thread turn counterclockwise |
| Function | Removes broken or seized spark plugs |
| Suitable for | Most car and truck spark plugs |