National Item Identification Number
01-413-2219
014132219
5133-01-413-2219
5133014132219
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)
76301
76301
Reference Numbers (Part Numbers)
SPT75D111330-5001TD
10M20-253
Required Categories
MATERIAL
SHANK STYLE
WIDTH ACROSS FLATS
OVERALL LENGTH
NOMINAL CUTTING DIAME
Required Description
STEEL OVERALL
91 HEXAGON
0.375 INCHES NOMINAL
2.000 INCHES NOMINAL
1.0550 IN