National Item Identification Number
01-326-4529
013264529
5133-01-326-4529
5133013264529
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)
81755
81755
Reference Numbers (Part Numbers)
16A11878-1
16VA11878-1
Required Categories
CUTTING END STYLE
OVERALL LENGTH
NOMINAL CUTTING DIAMETER
FLUTE QUANTITY
SPE
Required Description
21 SOLID
13.000 INCHES NOMINAL
0.5000 INCHES AND
0.5620 INCHES AND
1.6880 IN