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KEO 902-000-135 Built-in-Pilot Counterbore - Built-in-Pilot Counterbores
KEOBuilt-in-Pilot Counterbores

KEO 902-000-135 Built-in-Pilot Counterbore

The KEO Counterbore is a built-in-pilot counterbore designed for use with a 3/8" screw. It features a 37/64 in bore diameter and a 0.375 in pilot diameter, with a TiN coated cobalt construction. This standard-type…

SKU 3G-OTH-202237

Also listed as: 902000135 · 902 000 135

Brand
KEO
Item
902-000-135 Built-in-Pilot Counterbore
Part Number
902-000-135
Category
Built-in-Pilot Counterbores
Available to Order
Also known as:902-000-135KEO
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
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Technical Specifications

KEO
Manufacturer Part Number
902-000-135
Type
TiN Coated Cobalt
Bore Dia
37/64 in
Pilot Dia
0.375 in

Technical Documents

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

Product Description

The KEO Counterbore is a built-in-pilot counterbore designed for use with a 3/8" screw. It features a 37/64 in bore diameter and a 0.375 in pilot diameter, with a TiN coated cobalt construction. This standard-type tool is manufactured by KEO under part number 902-000-135.

Frequently Asked Questions

What is the KEO Counterbore 902-000-135 used for?

The KEO Counterbore is a built-in-pilot tool used to create a flat-bottomed recess for a 3/8" screw head, ensuring flush assembly in metalworking and machining applications. Its TiN coated cobalt construction provides wear resistance for extended tool life.

What are the specifications of the KEO Counterbore 902-000-135?

This KEO Counterbore has a 37/64 in bore diameter, a 0.375 in pilot diameter, and is designed for a 3/8" screw. It is a standard-type tool with TiN coated cobalt construction, manufactured by KEO under part number 902-000-135.

Where to buy the KEO Counterbore 902-000-135 worldwide?

3G Electric supplies the KEO Counterbore 902-000-135 worldwide. As a global industrial equipment distributor, 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?

Select a counterbore with a pilot diameter matching the screw's clearance hole and a bore diameter matching the screw head. For a 3/8" screw, the KEO 902-000-135 uses a 0.375 in pilot and 37/64 in bore. Always verify the tool's standard type and coating for your material.

Used in

Common applications for KEO
General machining — KEO single-flute countersinks for deburring and chamfering holes in steel and aluminum.
Automotive repair — KEO 82° countersinks for creating seats for flathead screws in engine and chassis components.
Aerospace manufacturing — KEO TiAlN-coated carbide countersinks for precision chamfering of fastener holes in hard alloys.
MRO operations — KEO left-hand keyseat cutters for milling keyways in shafts during equipment repair.
Metal fabrication — KEO 90° countersinks for chamfering plate and structural steel before welding.
Machine shop — KEO 100° countersinks for deburring cross-drilled holes in hydraulic manifolds.
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KEO Products

3G Electric supplies KEO 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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