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KEO Counterbore: For #4 Screw, 1/32" Oversized, 7/32 in Bore Dia - Oversized Built-in-Pilot Counterbores
KEOOversized Built-in-Pilot Counterbores

KEO Counterbore: For #4 Screw, 1/32" Oversized, 7/32 in Bore Dia

The KEO Counterbore: For #4 Screw is an oversized built-in-pilot counterbore designed for precision machining. This tool features a 7/32 in bore diameter and a 0.143 in pilot diameter, with a 1/32" oversized…

SKU 3G-OTH-184233

Also listed as: 902000078 · 902 000 078

Brand
KEO
Item
Counterbore: For #4 Screw, 1/32" Oversized, 7/32 in Bore Dia
Category
Oversized Built-in-Pilot Counterbores
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

KEO
Manufacturer Part Number
902-000-078
Bore Dia
7/32 in
Oversized
1/32"
Pilot Dia
0.143 in
Counterbore Type
Oversized

Technical Documents

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KEO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The KEO Counterbore: For #4 Screw is an oversized built-in-pilot counterbore designed for precision machining. This tool features a 7/32 in bore diameter and a 0.143 in pilot diameter, with a 1/32" oversized specification. It is identified by manufacturer part number 902-000-078.

Frequently Asked Questions

What is the KEO oversized counterbore used for?

The KEO oversized counterbore is used in precision machining to create a flat-bottomed recess for a #4 screw head. Its 1/32" oversized design provides clearance for screw heads that are slightly larger than standard, ensuring proper seating in metal or plastic workpieces.

What are the specifications of the KEO counterbore 902-000-078?

The KEO counterbore 902-000-078 is an oversized built-in-pilot type for #4 screws. It has a 7/32 in bore diameter and a 0.143 in pilot diameter, with a 1/32" oversized specification. The brand is KEO and the manufacturer part number is 902-000-078.

Where to buy the KEO counterbore 902-000-078 worldwide?

3G Electric supplies the KEO counterbore 902-000-078 worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this precision tool for your machining operations.

How to select the correct KEO counterbore for a #4 screw?

Select a KEO counterbore that matches your screw size and desired fit. For a #4 screw, the oversized 902-000-078 provides extra clearance with a 7/32 in bore and 0.143 in pilot. Always verify pilot diameter matches your existing hole to ensure proper alignment during machining.

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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