| DRIVE SURFACE SIZE | 0.500 INCHES NOMINAL SINGLE END |
| DRIVE END OUTSIDE DIAMETER | 0.860 INCHES MINIMUM AND 1.130 INCHES MAXIMUM |
| DRIVE END SHAPE | SQUARE SINGLE END INTERNAL |
| FEATURES PROVIDED | POWER TOOL |
| OVERALL LENGTH | 3.180 INCHES MINIMUM |
| MATERIAL | STEEL OVERALL |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 1 CLASS AND B STYLE AND 3/8 SIZE |
| WRENCHING SURFACE SHAPE | 6 POINT SINGLE END INTERNAL |
| WRENCHING SURFACE SIZE | 0.375 INCHES NOMINAL SINGLE END |
| WRENCHING END OPENING DEPTH | 0.110 INCHES MINIMUM |
| WRENCHING END OUTSIDE DIAMETER | 0.590 INCHES MINIMUM AND 0.660 INCHES MAXIMUM |
| STYLE DESIGNATOR | INTERNAL-INTERNAL |
| SURFACE TREATMENT | OXIDE OVERALL |