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KEO Counterbore: For 1/4" Screw, 1/64" Oversized, 25/64 in Bore Dia - Oversized Built-in-Pilot Counterbores
KEOOversized Built-in-Pilot Counterbores

KEO Counterbore: For 1/4" Screw, 1/64" Oversized, 25/64 in Bore Dia

The KEO Counterbore is an oversized built-in-pilot counterbore designed for 1/4" screws. It features a 1/64" oversized bore with a 25/64 in bore diameter and a 0.265 in pilot diameter, identified by manufacturer part…

SKU 3G-OTH-184263

Brand
KEO
Item
Counterbore: For 1/4" Screw, 1/64" Oversized, 25/64 in Bore Dia
Category
Oversized Built-in-Pilot Counterbores
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Technical Specifications

KEO
Manufacturer Part Number
902-000-317
Bore Dia
25/64 in
Oversized
1/64"
Pilot Dia
0.265 in
Counterbore Type
Oversized
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KEO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The KEO Counterbore is an oversized built-in-pilot counterbore designed for 1/4" screws. It features a 1/64" oversized bore with a 25/64 in bore diameter and a 0.265 in pilot diameter, identified by manufacturer part number 902-000-317.

Frequently Asked Questions

What is the KEO Counterbore 902-000-317 used for?

The KEO Counterbore is used to create a flat-bottomed recess for 1/4" screw heads in metalworking and machining applications. Its oversized 1/64" bore accommodates fasteners with slight dimensional variation, ensuring proper seating in industrial assembly and maintenance tasks.

What are the specifications of the KEO Counterbore 902-000-317?

This KEO Counterbore has a 25/64 in bore diameter and a 0.265 in pilot diameter. It is an oversized built-in-pilot type designed for 1/4" screws, with a 1/64" oversized bore. The manufacturer part number is 902-000-317.

Where to buy the KEO Counterbore 902-000-317 worldwide?

You can source the KEO Counterbore 902-000-317 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring the tool reaches your facility reliably.

How to select the correct KEO Counterbore for a 1/4" screw?

Select a KEO Counterbore with a pilot diameter matching the screw's clearance hole and a bore diameter sized for the screw head. For a 1/4" screw, the 902-000-317 model with a 0.265 in pilot and 25/64 in bore provides an oversized fit for slight tolerance adjustments.

Used in

Common applications for KEO
Metalworking — KEO plain-tip center drills for creating accurate starting points in lathe operations
Automotive manufacturing — KEO bell-tip center drills for countersinking holes in engine components
Aerospace machining — KEO radius-tip center drills for reducing stress risers in critical parts
General machining — KEO keyseat cutters for milling keyways in shafts and gears
Tool and die making — KEO TiN-coated center drills for extended tool life in hardened steels
Precision engineering — KEO cobalt center drills for high-temperature alloy applications

KEO Products

3G Electric supplies KEO oversized built-in-pilot counterbores. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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