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KEO 902-000-050 Built-in-Pilot Counterbore for M4 Screws - Built-in-Pilot Counterbores
KEOBuilt-in-Pilot Counterbores

KEO 902-000-050 Built-in-Pilot Counterbore for M4 Screws

The KEO Counterbore (MPN 902-000-050) is a standard built-in-pilot counterbore designed for M4 screws, featuring an 8 mm bore diameter and a 4.3 mm pilot diameter, constructed from cobalt. This tool is manufactured…

SKU 3G-OTH-202268

Also listed as: 902000050 · 902 000 050

Brand
KEO
Item
902-000-050 Built-in-Pilot Counterbore for M4 Screws
Part Number
902-000-050
Category
Built-in-Pilot Counterbores
Available to Order
Also known as:902-000-050KEO
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Technical Specifications

KEO
Manufacturer Part Number
902-000-050

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

Product Description

The KEO Counterbore (MPN 902-000-050) is a standard built-in-pilot counterbore designed for M4 screws, featuring an 8 mm bore diameter and a 4.3 mm pilot diameter, constructed from cobalt. This tool is manufactured by KEO and is intended for industrial counterboring applications.

Frequently Asked Questions

What is the KEO Counterbore 902-000-050 used for?

The KEO Counterbore 902-000-050 is used to create a flat-bottomed recess for M4 screw heads in metal or plastic parts. Its built-in pilot aligns the tool for accurate counterboring, making it essential in machining, tooling, and assembly operations across industrial departments.

What are the specifications of the KEO Counterbore 902-000-050?

This KEO Counterbore has an 8 mm bore diameter and a 4.3 mm pilot diameter, designed for M4 screws. It is a standard built-in-pilot type made from cobalt, with manufacturer part number 902-000-050. KEO tools are known for durability in precision machining.

Where to buy the KEO Counterbore 902-000-050 worldwide?

3G Electric supplies the KEO Counterbore 902-000-050 to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive the correct tool for your application. Contact us for availability and lead time on this cobalt counterbore.

How to select the correct KEO Counterbore for M4 screws?

To select the correct KEO Counterbore for M4 screws, match the bore diameter to the screw head size (8 mm) and the pilot diameter to the screw body (4.3 mm). Ensure the tool is cobalt for heat resistance. 3G Electric can help source the right KEO tool for your job.

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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