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KEO

Keo Counterbore, Cobalt, 5/16", Fractional Inch, Standard

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Counterbore,Close Fit,Size 5/
Counterbore,Close Fit,Size 5/

#918815-6 | Pkg Qty: 1

$71.93 pkg | $71.93 ea

Drop Ship Item

Shipping to 60045

Technical Specifications

Key Specifications
Bore Diameter
15/32 in.
Primary Material Application
All Materials
Brand
KEO
Screw Size
5/16 in.
Item
Counterbore
Screw Type
Socket Head Cap Screw
Material
Cobalt
Shank Diameter
3/8 in.
Mfr. Part Number
55218
Shank Type
Straight Shank
Number of Flutes
3
Shipping Weight
.15 lb.
Number of Pieces
1
Sizes Included
mm mm mm
Overall Length
4-1/2 in.
Spiral Direction
Right Hand
Package Quantity
1
Style
Nominal/Close Fit
Pilot Diameter
19/64 in.
Type
Built-in Pilot
Pilot Length
3/8 in.
General
Application
For Use In Alloys, Cast Iron, Stainless Steel And Titanium
Pilot Dia.
19/64 in
Bore Dia.
15/32 in
Primary Material Application ISO Code
S3
Counterbore Type
Standard
Shank Dia.
3/8 in
For Screw Size
5/16 in
Shank Type - Machining
Straight
Material - Machining
Cobalt
Size - Decimal
5/16 in - 0.3125
Measurement System
Fractional Inch
Standards
ISO 9001:2008

Product Description

Cobalt steel counterbores provide more wear resistance at high speeds than high-speed steel counterbores and are suitable for machining hard materials. They make a flat-bottomed cavity at the top of an existing hole so that a bolt, nut, or other part is hidden beneath or sits flush with the top of the hole when installed into it. Also called solid pilot counterbores, these counterbores have a pilot that keeps the counterbore centered in the hole to ensure a level seat. The pilot is built-in and cannot be removed.

Item Barcode
9188156
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