| DRIVE SURFACE SIZE | 0.375 INCHES NOMINAL SINGLE END |
| DRIVE END OUTSIDE DIAMETER | 0.555 INCHES MAXIMUM |
| DRIVE END SHAPE | SQUARE SINGLE END INTERNAL |
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY FEATURES PROVIDED |
| FEATURES PROVIDED | MANUAL TOOL AND NONSPARKING AND NONMAGNETIC |
| OVERALL LENGTH | 2.125 INCHES MINIMUM |
| MATERIAL | COPPER ALLOY OVERALL |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 2 CLASS AND B STYLE |
| SPECIAL MARKINGS | 3/4 IN. |
| STYLE DESIGNATOR | INTERNAL-INTERNAL |
| WRENCHING END OPENING DEPTH | 0.437 INCHES MINIMUM |
| WRENCHING END OUTSIDE DIAMETER | 1.110 INCHES MAXIMUM |
| WRENCHING SURFACE SHAPE | 12 POINT SINGLE END INTERNAL |
| WRENCHING SURFACE SIZE | 0.750 INCHES NOMINAL SINGLE END |