National Item Identification Number
01-050-6044
010506044
5133-01-050-6044
5133010506044
National Stock Number
Item Name
COUNTERBORE,MACHINE
Federal Supply Class
5133
Description
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.
Commercial and Government Entity Code (Supplier Data)
1NEX4
KENNAMETAL INC.
DBA KENNAMETAL INDUSTRIAL PRODUCTS
470 OLD EVANS RD
EVANS
GA
30809
703-256-1500
Reference Numbers (Part Numbers)
C3000-0500
EDP50708
3000-0500
3230
50708
879
Required Categories
MATERIAL
HARDNESS RATING
CUTTING END STYLE
SHANK STYLE
SHANK DIAMETER
OVERA
Required Description
STEEL OVERALL
40.0 ROCKWELL C MINIMUM AND
53.0 ROCKWELL C MAXIMUM
22 INTERCHA