| DRIVE SURFACE SIZE | 0.500 INCHES NOMINAL SINGLE END |
| DRIVE END SHAPE | SQUARE SINGLE END INTERNAL |
| FEATURES PROVIDED | MANUAL TOOL |
| OVERALL LENGTH | 38.1 MILLIMETERS NOMINAL |
| MATERIAL | STEEL OVERALL |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 1 CLASS AND A STYLE |
| SPECIFICATION/STANDARD DATA | 0U583-SAE AS955 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| STYLE DESIGNATOR | INTERNAL-INTERNAL |
| SURFACE TREATMENT | CHROMIUM OVERALL |
| WRENCHING SURFACE SHAPE | 12 POINT SINGLE END INTERNAL |
| WRENCHING SURFACE SIZE | 12.0 MILLIMETERS NOMINAL SINGLE END |