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National Stock Number:
5133-01-555-6560
Federal Supply Class:
5133
National Item Identification Number:
015556560
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:
| MM-280-11K | 08295 | MARTIN AIRCRAFT TOOL COMPANY |
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Techincal Specification:
| FLUTE QUANTITY | 4 | | PART NAME ASSIGNED BY CONTROLLING AGENCY | REVERSE SPOTFACER-4 FLUTE | | PILOT HOLE NOMINAL DIAMETER | 0.375 INCHES | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL CUTTING DIAMETER | 1.0000 INCHES |
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