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National Stock Number:
5133-00-232-9250
Federal Supply Class:
5133
National Item Identification Number:
002329250
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:
| 878 3/8 | 13130 | CLEVELAND TWIST DRILL CO DIV OF GREENFIELD INDUSTRIES INC | | 878 3/8 | 1NEX4 | KENNAMETAL INC. DIV KENNAMETAL INDUSTRIAL PRODUCTS GROUP | | 878-3-8 | 13130 | CLEVELAND TWIST DRILL CO DIV OF GREENFIELD INDUSTRIES INC | | C46477 | 1NEX4 | KENNAMETAL INC. DIV KENNAMETAL INDUSTRIAL PRODUCTS GROUP |
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Techincal Specification:
| CUTTING END STYLE | INTERCHANGEABLE PILOT | | FEATURES PROVIDED | REPLACEABLE PILOT | | FLUTE QUANTITY | 3 | | OVERALL LENGTH | 4.062 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | NOMINAL CUTTING DIAMETER | 0.3750 INCHES | | PILOT HOLE NOMINAL DIAMETER | 0.156 INCHES | | PILOT DIAMETER | 0.188 INCHES MINIMUM AND 0.312 INCHES MAXIMUM | | SHANK STYLE | STANDARD TAPER W/TANG | | TAPER SHANK SIZE DESIGNATOR | 1 MORSE |
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