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KEO Counterbore: For M5 Screw, 10 mm Bore Dia, 4.2 mm Pilot Dia - Built-in-Pilot Counterbores
KEOBuilt-in-Pilot Counterbores

KEO Counterbore: For M5 Screw, 10 mm Bore Dia, 4.2 mm Pilot Dia

The KEO Counterbore is a built-in-pilot counterbore designed for M5 screws, featuring a 10 mm bore diameter and a 4.2 mm pilot diameter. This standard tool is constructed from TiN coated cobalt, as indicated by…

SKU 3G-OTH-202272

Brand
KEO
Item
Counterbore: For M5 Screw, 10 mm Bore Dia, 4.2 mm Pilot Dia
Category
Built-in-Pilot Counterbores
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Technical Specifications

KEO
Manufacturer Part Number
902-000-225
Type
TiN Coated Cobalt
Bore Dia
10 mm
Pilot Dia
4.2 mm
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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 M5 screws, featuring a 10 mm bore diameter and a 4.2 mm pilot diameter. This standard tool is constructed from TiN coated cobalt, as indicated by manufacturer part number 902-000-225.

Frequently Asked Questions

What is the KEO Counterbore 902-000-225 used for?

The KEO Counterbore is used to create a flat-bottomed recess for M5 screw heads in metal or plastic workpieces. It is commonly applied in machining and assembly operations where a flush screw fit is required, such as in jig and fixture building or general industrial fabrication.

What are the specifications of the KEO Counterbore 902-000-225?

This built-in-pilot counterbore is designed for M5 screws, with a 10 mm bore diameter and a 4.2 mm pilot diameter. It is a standard tool made from TiN coated cobalt, manufactured by KEO under part number 902-000-225.

Where to buy the KEO Counterbore 902-000-225 worldwide?

3G Electric supplies the KEO Counterbore 902-000-225 worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this tool for your operations.

How to select the correct KEO counterbore for M5 screws?

Select a counterbore with a bore diameter matching the screw head size and a pilot diameter that fits the existing hole. For M5 screws, the KEO 902-000-225 with a 10 mm bore and 4.2 mm pilot is appropriate. Always verify the tool's coating and material compatibility with your workpiece.

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 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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