National Item Identification Number

00-950-7639
009507639
3460-00-950-7639
3460009507639

National Stock Number

Item Name

HOLDER,COUNTERBORE

Federal Supply Class

3460

Description

A cylindrical body having a straight or tapered shank which holds the cutter in place by driving lugs or two splines 180 degrees (3.1 radians) apart. It is used extensively on screw machines and boring mills. Excludes HOLDER, COUNTERSINK.

Commercial and Government Entity Code (Supplier Data)

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Reference Numbers (Part Numbers)

HS201

Required Categories

DESIGN TYPE
SHANK TYPE
CUTTER DIAMETER RANGE
CUTTER DRIVE TYPE FOR WHICH DESI

Required Description

SOLID
STRAIGHT
0.500 TO 1.125 INCHES
STRAIGHT
DIA IS 0.500