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KEO Counterbore: For 3/8" Screw, 1/32" Oversized, 39/64 in Bore Dia, 0.406 in Pilot Dia - Oversized Built-in-Pilot Counterbores
KEOOversized Built-in-Pilot Counterbores

KEO Counterbore: For 3/8" Screw, 1/32" Oversized, 39/64 in Bore Dia, 0.406 in Pilot Dia

The KEO Counterbore is an oversized built-in-pilot counterbore designed for 3/8" screws. It features a 1/32" oversized bore diameter of 39/64 inches and a pilot diameter of 0.406 inches, constructed from cobalt. This…

SKU 3G-OTH-184276

Also listed as: 902000024 · 902 000 024

Brand
KEO
Item
Counterbore: For 3/8" Screw, 1/32" Oversized, 39/64 in Bore Dia, 0.406 in Pilot Dia
Category
Oversized Built-in-Pilot Counterbores
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

KEO
Manufacturer Part Number
902-000-024
Type
Cobalt
Bore Dia
39/64 in
Oversized
1/32"
Pilot Dia
0.406 in
Counterbore Type
Oversized

Technical Documents

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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 1/32" oversized bore diameter of 39/64 inches and a pilot diameter of 0.406 inches, constructed from cobalt. This tool is identified by manufacturer part number 902-000-024.

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 in metalworking. Its built-in pilot aligns with an existing hole, and the 1/32" oversized bore provides clearance for screw heads that require a slightly larger pocket than standard.

What are the specifications of the KEO counterbore 902-000-024?

This KEO counterbore has a 39/64 in bore diameter, 0.406 in pilot diameter, and is 1/32" oversized for 3/8" screws. It is made from cobalt for heat resistance and durability. The manufacturer part number is 902-000-024.

Where to buy KEO counterbore tools worldwide?

3G Electric supplies KEO counterbore tools worldwide. We handle full logistics and customs clearance to deliver industrial cutting tools like this oversized built-in-pilot counterbore to your facility. Contact us for pricing and lead time on the 902-000-024.

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

Select an oversized counterbore like this KEO model when the screw head needs extra clearance. Match the pilot diameter to the existing hole (0.406 in here) and confirm the bore diameter (39/64 in) accommodates the screw head. Cobalt construction suits harder materials.

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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