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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, identified by manufacturer part…

SKU 3G-OTH-184332

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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Technical Specifications

KEO
Manufacturer Part Number
902-000-311
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, identified by manufacturer part number 902-000-311.

Frequently Asked Questions

What is the KEO oversized counterbore used for?

The KEO oversized counterbore is used to create a flat-bottomed recess for 3/8" screw heads in metal or plastic parts. Its 1/64" oversized bore and built-in pilot ensure precise alignment and clearance for fasteners in machining, tooling, and industrial assembly applications.

What are the specifications of the KEO counterbore 902-000-311?

The KEO counterbore model 902-000-311 has a 19/32 in bore diameter, a 0.39 in pilot diameter, and is 1/64" oversized for 3/8" screws. It is an oversized built-in-pilot counterbore type, designed for accurate recessing in industrial machining operations.

Where to buy KEO counterbore 902-000-311 worldwide?

3G Electric supplies the KEO counterbore 902-000-311 to customers worldwide. We handle full logistics, customs clearance, and delivery for global orders. Contact us to source this oversized built-in-pilot counterbore for your machining or tooling requirements.

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

Select a KEO counterbore with a pilot diameter matching your existing hole and a bore diameter sized for the screw head. For 3/8" screws, the 1/64" oversized bore (19/32 in) provides clearance. Always verify pilot fit and material compatibility before use.

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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