| DIAMETER | 0.4376 INCHES MINIMUM AND 0.4378 INCHES MAXIMUM |
| EFFECTIVE LENGTH | 0.698 INCHES MINIMUM AND 0.700 INCHES MAXIMUM |
| FIRST END STYLE | CHAMFERED |
| FIRST END TAPER ANGLE | 44.5 DEGREES MINIMUM AND 45.5 DEGREES MAXIMUM |
| FIRST END TAPER LENGTH | 0.031 INCHES NOMINAL |
| HEAD STYLE | FLAT |
| HEIGHT | 0.050 INCHES MINIMUM AND 0.055 INCHES MAXIMUM |
| PIN HEAD DIAMETER | 0.493 INCHES MINIMUM AND 0.498 INCHES MAXIMUM |
| STYLE DESIGNATOR | GROOVE |
| UNDER HEAD LENGTH | 0.883 INCHES MINIMUM AND 0.888 INCHES MAXIMUM |
| UNDERCUT DIAMETER | 0.4116 INCHES MINIMUM AND 0.4118 INCHES MAXIMUM |
| UNDERCUT WIDTH | 0.033 INCHES MINIMUM AND 0.053 INCHES MAXIMUM |