National Item Identification Number
00-813-4613
008134613
5133-00-813-4613
5133008134613
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)
0B6S1
30874
Reference Numbers (Part Numbers)
3135797
3135797
3135797
Required Categories
MATERIAL
SHANK STYLE
SHANK DIAMETER
OVERALL LENGTH
NOMINAL CUTTING DIAMETER;
Required Description
STEEL OVERALL
76 STRAIGHT ROUND
0.375 INCHES NOMINAL
3.750 INCHES NOMINAL
0.