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KEO Counterbore: For M10 Screw, 18 mm Bore Dia, 10.5 mm Pilot Dia - Built-in-Pilot Counterbores
KEOBuilt-in-Pilot Counterbores

KEO Counterbore: For M10 Screw, 18 mm Bore Dia, 10.5 mm Pilot Dia

The KEO Counterbore, model 902-000-255, is a standard built-in-pilot counterbore designed for M10 screws. It features an 18 mm bore diameter and a 10.5 mm pilot diameter, with a TiN coated cobalt construction.

SKU 3G-OTH-202288

Brand
KEO
Item
Counterbore: For M10 Screw, 18 mm Bore Dia, 10.5 mm Pilot Dia
Category
Built-in-Pilot Counterbores
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Technical Specifications

KEO
Manufacturer Part Number
902-000-255
Type
TiN Coated Cobalt
Bore Dia
18 mm
Pilot Dia
10.5 mm
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KEO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The KEO Counterbore, model 902-000-255, is a standard built-in-pilot counterbore designed for M10 screws. It features an 18 mm bore diameter and a 10.5 mm pilot diameter, with a TiN coated cobalt construction.

Frequently Asked Questions

What is the KEO Counterbore 902-000-255 used for?

The KEO Counterbore 902-000-255 is used to create a flat-bottomed recess for M10 screw heads in metalworking. It is commonly applied in machining and tooling operations where a flush or countersunk fastener fit is required. The built-in pilot ensures concentric alignment with the pre-drilled hole.

What are the specifications of the KEO Counterbore 902-000-255?

The KEO Counterbore 902-000-255 has an 18 mm bore diameter and a 10.5 mm pilot diameter. It is made of TiN coated cobalt for wear resistance and is designed for M10 screws. The part number is 902-000-255, and it is a standard built-in-pilot counterbore from KEO.

Where to buy the KEO Counterbore 902-000-255 worldwide?

You can source the KEO Counterbore 902-000-255 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 cutting tool.

How to select the correct KEO counterbore for M10 screws?

To select the correct KEO counterbore for M10 screws, match the pilot diameter to the screw's clearance hole (10.5 mm for M10) and the bore diameter to the screw head size (18 mm). Ensure the tool is TiN coated for extended tool life. KEO offers standard built-in-pilot designs for precise alignment.

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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