| MATERIAL | STEEL OVERALL |
| SURFACE TREATMENT | CHROMIUM OVERALL |
| STYLE DESIGNATOR | INTERNAL-INTERNAL |
| OVERALL LENGTH | 3.500 INCHES MAXIMUM |
| WRENCHING END OUTSIDE DIAMETER | 3.260 INCHES MAXIMUM |
| DRIVE END OUTSIDE DIAMETER | 3.260 INCHES MAXIMUM |
| WRENCHING END OPENING DEPTH | 1.375 INCHES MINIMUM |
| WRENCHING SURFACE SIZE | 2.250 INCHES NOMINAL SINGLE END |
| WRENCHING SURFACE SHAPE | 12 POINT SINGLE END INTERNAL |
| DRIVE SURFACE SIZE | 0.750 INCHES NOMINAL SINGLE END |
| DRIVE END SHAPE | SQUARE SINGLE END INTERNAL |
| FEATURES PROVIDED | MANUAL TOOL |
| SPECIAL MARKINGS | 2-1/4 IN. |
| SPECIFICATION/STANDARD DATA | 05047-ASME B107.1 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND |
| 2 CLASS |
| DEPARTURE FROM CITED DOCUMENT | RETENTION TYPE - DESIGN A, B, LOCK BUTTON ALTERNATIVE |