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National Stock Number:
5133-01-326-4529
Federal Supply Class:
5133
National Item Identification Number:
013264529
Description:
COUNTERBORE,MACHINE
Detail:
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.
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Manufacturer Information:
| 16A11878-1 | 81755 | LOCKHEED MARTIN CORPORATION | | 16VA11878-1 | 81755 | LOCKHEED MARTIN CORPORATION |
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Techincal Specification:
| CUTTING END STYLE | SOLID | | FLUTE QUANTITY | 4 | | NOMINAL CUTTING DIAMETER | 0.5000 INCHES AND 0.5620 INCHES AND 1.6880 INCHES AND 1.8750 INCHES | | OVERALL LENGTH | 13.000 INCHES NOMINAL | | SPECIAL FEATURES | USED TO SPOTFACE WING ATTACH FITTINGS AND REPAIR ON BULKHEAD,UPPER FUSALAGE |
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