| DRIVE TYPE | SPANNER |
| ACCOMMODATED SPARK PLUG THREAD DIAMETER | 14.0 MILLIMETERS NOMINAL |
| BOTTOM END COUNTERBORE DIAMETER | 0.564 INCHES MINIMUM AND 0.574 INCHES MAXIMUM |
| BOTTOM END COUNTERBORE DEPTH | 0.260 INCHES NOMINAL |
| COUNTERBORE FEATURE | INCLUDED |
| HEAD END COUNTERBORE DEPTH | 0.060 INCHES NOMINAL |
| HEAD END COUNTERBORE DIAMETER | 0.564 INCHES MINIMUM AND 0.574 INCHES MAXIMUM |
| HEAD HEIGHT | 0.120 INCHES NOMINAL |
| HEAD DIAMETER | 1.310 INCHES NOMINAL |
| HEAD | INCLUDED |
| OUTSIDE THREAD DIAMETER | 0.875 INCHES NOMINAL |
| OVERALL LENGTH | 0.660 INCHES NOMINAL |
| MATERIAL | COPPER ALLOY BODY |