Model: 166C011-278B7

Countersink

Properties:

Thread Direction
Right-hand
Pilot Diameter
0.278 inches
Shank Style
Externally threaded
Overall Length
0.688 inches
Body Diameter
0.625 inches
Thread Diameter
0.250 inches
Cutting End Style
Spiral flute blunt end
Cutting Rotation Direction
Right-hand
Flute Quantity
3
Features Provided
Integral pilot
Thread Quantity
28 per inch
Included Angle
100.0 degrees
Material
Steel
Thread Series Designator
Unf
NSN
5133-01-322-3633
Part Number
166C011-278B7
Description
Countersink
CAGE
01713

An angular cutting tool, usually made with angular relief, having one or more flutes with specific size angle cutting edges. It is used for chamfering and countersinking holes. The tool may have a straight shank, tapered shank, bit stock shank or special shank requiring a special holder, for holding in a power- or hand-operated machine. It may be designed to be driven or turned by means of a wrench or carpenter's brace. For items requiring a holder but the holder is not included, use cutter, countersink.

Part 166C011-278B7 NSN 5133-01-322-3633

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05260
FIIG:
A188A0
Concept No.:
App. Key:
G
Cond. Code:
2
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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