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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 (MPN 902-000-052) is a Standard built-in-pilot counterbore designed for M5 screws, featuring a 10 mm bore diameter and a 4.2 mm pilot diameter, constructed from cobalt. This tool is manufactured…

SKU 3G-OTH-202271

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
902-000-052
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KEO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The KEO Counterbore (MPN 902-000-052) is a Standard built-in-pilot counterbore designed for M5 screws, featuring a 10 mm bore diameter and a 4.2 mm pilot diameter, constructed from cobalt. This tool is manufactured by KEO.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the KEO Counterbore 902-000-052 used for?

The KEO Counterbore 902-000-052 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 or countersunk screw fit is required, ensuring proper seating and load distribution.

What are the specifications of the KEO Counterbore 902-000-052?

The KEO Counterbore 902-000-052 is a Standard built-in-pilot counterbore for M5 screws. It has a 10 mm bore diameter and a 4.2 mm pilot diameter, and is made from cobalt. The manufacturer part number is 902-000-052, and it is produced by KEO.

Where to buy the KEO Counterbore 902-000-052 worldwide?

You can source the KEO Counterbore 902-000-052 worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this KEO tool.

How to select the correct KEO counterbore for M5 screws?

To select the correct KEO counterbore for M5 screws, match the pilot diameter to the screw's clearance hole size (4.2 mm for M5) and ensure the bore diameter (10 mm) accommodates the screw head. Verify the tool is made from cobalt for durability in harder materials. Always consult the KEO catalog for compatibility.

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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