| FIRST END STYLE | CHAMFERED |
| FIRST END TAPER ANGLE | 40.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM |
| FIRST END TAPER LENGTH | 0.065 INCHES NOMINAL |
| FIRST END LOCATION | LONG END |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| OVERALL LENGTH | 7.875 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A322 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A322 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A322 ASSN STD 3RD MATERIAL RESPONSE OR ASTM A322 ASSN STD 4TH MATERIAL RESPONSE OR ASTM A322 ASSN STD 5TH MATERIAL RESPONSE OR ASTM A322 ASSN STD 6TH MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4130 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8637 OR STEEL COMP 8640 OVERALL |
| SECOND END RELATIONSHIP WITH FIRST END | NOT IDENTICAL |
| SECOND END STYLE | SQUARE |
| SECOND SHANK DIAMETER | 0.360 INCHES MINIMUM AND 0.370 INCHES MAXIMUM |
| SECOND SHANK LENGTH | 0.250 INCHES NOMINAL |
| SHANK DIAMETER | 0.488 INCHES MINIMUM AND 0.498 INCHES MAXIMUM |
| SHANK LENGTH | 2.620 INCHES NOMINAL |
| SPECIAL FEATURES | CUT OUT ON SECOND SHANK LENGTH 0.375 IN. LONG 0.340 IN. MIN. 0.360 IN. MAX. DEEP |
| STYLE DESIGNATOR | UNDERCUT |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-26074,CL 2,GR A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | NICKEL OVERALL |
| UNDERCUT DIAMETER | 0.455 INCHES MINIMUM AND 0.475 INCHES MAXIMUM |
| UNDERCUT WIDTH | 2.500 INCHES NOMINAL |