| DRIVE SURFACE SIZE | 0.375 INCHES NOMINAL SINGLE END |
| FEATURES PROVIDED | MANUAL TOOL |
| WRENCHING SURFACE SHAPE | 6 POINT SINGLE END INTERNAL |
| WRENCHING END OPENING DEPTH | 0.328 INCHES MINIMUM AND 0.343 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| OVERALL LENGTH | 1.187 INCHES MINIMUM AND 1.250 INCHES MAXIMUM |
| SURFACE TREATMENT | CHROMIUM OVERALL |
| WRENCHING SURFACE SIZE | 0.500 INCHES NOMINAL SINGLE END |
| DRIVE END SHAPE | SQUARE SINGLE END INTERNAL |
| SPECIAL MARKINGS | 1/2 IN. |
| WRENCHING END OUTSIDE DIAMETER | 0.687 INCHES MINIMUM AND 0.880 INCHES MAXIMUM |
| DRIVE END OUTSIDE DIAMETER | 0.687 INCHES MINIMUM AND 0.880 INCHES MAXIMUM |
| STYLE DESIGNATOR | INTERNAL-INTERNAL |