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National Stock Number:
5133-00-220-9556
Federal Supply Class:
5133
National Item Identification Number:
002209556
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:
| 882 | 13130 | CLEVELAND TWIST DRILL CO DIV OF GREENFIELD INDUSTRIES INC | | 882 | 1NEX4 | KENNAMETAL INC. DIV KENNAMETAL INDUSTRIAL PRODUCTS GROUP |
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Techincal Specification:
| MATERIAL | STEEL OVERALL | | CUTTING END STYLE | INTERCHANGEABLE PILOT | | SHANK STYLE | STRAIGHT ROUND | | SHANK DIAMETER | 0.438 INCHES NOMINAL | | OVERALL LENGTH | 6.125 INCHES NOMINAL | | NOMINAL CUTTING DIAMETER | 0.4380 INCHES | | FLUTE QUANTITY | 4 | | FEATURES PROVIDED | REPLACEABLE PILOT | | PILOT HOLE NOMINAL DIAMETER | 0.312 INCHES |
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