Part Details | MACHINE COUNTERBORE
5133-01-050-7946 An end cutting tool having two or more cutting edges with flutes or grooves for the passage of cuttings, an integral or removable holder designed for adaption to the end of a machine spindle. The flutes or grooves are usually helical to give a positive rake at the cutting edges. It is designed to form a flat-bottomed enlargement of the mouth of a previously formed cylindrical hole. For items requiring a holder but the holder is not included, use CUTTER, COUNTERBORE.
Alternate Parts: 5133-01-050-7946, 01-050-7946, 5133010507946, 010507946
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 51 | NOV 14, 1977 | 01-050-7946 | 05259 ( COUNTERBORE, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
STRAIGHT ROUND
DOUBLE TWIST W/SCREW POINT
Cross Reference | NSN 5133-01-050-7946
| Part Number | Cage Code | Manufacturer |
|---|
Technical Data | NSN 5133-01-050-7946
| Characteristic | Specifications |
|---|---|
| HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM |
| CUTTING END STYLE | DOUBLE TWIST W/SCREW POINT |
| SHANK STYLE | STRAIGHT ROUND |
| SHANK DIAMETER | 0.750 INCHES NOMINAL |
| OVERALL LENGTH | 5.375 INCHES NOMINAL |
| NOMINAL CUTTING DIAMETER | 0.8750 INCHES |
| FLUTE QUANTITY | 3 |