Model: AT488-20

Machine Counterbore

Properties:

Shank Diameter
0.2500 inches
Shank Style
Straight round
Overall Length
2.000 inches
Cutting End Style
Interchangeable pilot
Cutting Diameter
0.8438 inches
Pilot Hole Diameter
0.1875 inches
Flute Quantity
4
Features Provided
Replaceable pilot
Material
Steel
NSN
5133-00-971-8560
Part Number
AT488-20
Description
Counterbore,machine
CAGE
00784

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.

Part AT488-20 NSN 5133-00-971-8560

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05259
FIIG:
A188A0
Concept No.:
App. Key:
F
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8205100000
  • SITC: 69541
  • End Use: Photo, service industry machinery
  • NAICS: 332216
  • USDA: 1

Freight Class: Drilling, threading or tapping tools and parts thereof, base metal

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