| DIAMETER | 0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM |
| EFFECTIVE LENGTH | 0.500 INCHES MINIMUM AND 0.505 INCHES MAXIMUM |
| FIRST END STYLE | CHAMFERED |
| FIRST END TAPER ANGLE | 40.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM |
| FIRST END TAPER LENGTH | 0.005 INCHES MINIMUM AND 0.025 INCHES MAXIMUM |
| FIRST END LOCATION | BOTH ENDS |
| HARDNESS RATING | 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| MATERIAL | STEEL OVERALL |
| OVERALL LENGTH | 0.761 INCHES MINIMUM AND 0.781 INCHES MAXIMUM |
| SECOND END RELATIONSHIP WITH FIRST END | IDENTICAL |
| SECOND UNDERCUT WIDTH | 0.073 INCHES MINIMUM AND 0.076 INCHES MAXIMUM |
| STYLE DESIGNATOR | GROOVE |
| SURFACE FINISH | 32.0 MICROINCHES SHANK END |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-16232,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PHOSPHATE OVERALL |
| UNDERCUT WIDTH | 0.073 INCHES MINIMUM AND 0.076 INCHES MAXIMUM |
| UNDERCUT DIAMETER | 0.176 INCHES MINIMUM AND 0.182 INCHES MAXIMUM |
| UNDERCUT RADIUS | 0.026 INCHES MINIMUM AND 0.046 INCHES MAXIMUM |