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KEO Counterbore: For 3/8" Screw, 1/64" Oversized, 19/32 in Bore Dia - Oversized Built-in-Pilot Counterbores
KEOOversized Built-in-Pilot Counterbores

KEO Counterbore: For 3/8" Screw, 1/64" Oversized, 19/32 in Bore Dia

The KEO Counterbore is an oversized built-in-pilot counterbore designed for 3/8" screws. It features a 1/64" oversized bore with a 19/32 in bore diameter and a 0.39 in pilot diameter (MPN 902-000-138). This tool is…

SKU 3G-OTH-184275

Also listed as: 902000138 · 902 000 138

Brand
KEO
Item
Counterbore: For 3/8" Screw, 1/64" Oversized, 19/32 in Bore Dia
Category
Oversized Built-in-Pilot Counterbores
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

KEO
Manufacturer Part Number
902-000-138
Bore Dia
19/32 in
Oversized
1/64"
Pilot Dia
0.39 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 3/8" screws. It features a 1/64" oversized bore with a 19/32 in bore diameter and a 0.39 in pilot diameter (MPN 902-000-138). This tool is manufactured by KEO.

Frequently Asked Questions

What is the KEO oversized counterbore used for?

The KEO oversized counterbore is used to create a flat-bottomed recess for a 3/8" screw head, allowing the fastener to sit flush with or below the workpiece surface. It is commonly applied in metalworking and machining operations where precise screw seating is required.

What are the specifications of the KEO counterbore 902-000-138?

The KEO counterbore MPN 902-000-138 is an oversized built-in-pilot type for 3/8" screws. It has a 1/64" oversized bore, a 19/32 in bore diameter, and a 0.39 in pilot diameter. The tool is manufactured by KEO and is designed for industrial machining applications.

Where to buy the KEO counterbore 902-000-138 worldwide?

3G Electric supplies the KEO counterbore 902-000-138 worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this tool for your machining needs.

How to select the correct KEO counterbore for a 3/8" screw?

To select the correct KEO counterbore, match the pilot diameter to the screw's clearance hole and the bore diameter to the screw head size. For a 3/8" screw, the KEO oversized counterbore with a 19/32 in bore and 0.39 in pilot is suitable. Always verify the screw head dimensions before ordering.

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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