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KEO Counterbore: For M3.5 Screw, 6.5 mm Bore Dia, 3.9 mm Pilot Dia - Built-in-Pilot Counterbores
KEOBuilt-in-Pilot Counterbores

KEO Counterbore: For M3.5 Screw, 6.5 mm Bore Dia, 3.9 mm Pilot Dia

The KEO Counterbore: For M3.5 Screw is a built-in-pilot counterbore from KEO, designed for M3.5 screws. It features a 6.5 mm bore diameter and a 3.9 mm pilot diameter, with a TiN coated cobalt construction. This…

SKU 3G-OTH-202266

Brand
KEO
Item
Counterbore: For M3.5 Screw, 6.5 mm Bore Dia, 3.9 mm Pilot Dia
Category
Built-in-Pilot Counterbores
Available to Order
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Technical Specifications

KEO
Manufacturer Part Number
902-000-213
Type
TiN Coated Cobalt
Bore Dia
6.5 mm
Pilot Dia
3.9 mm
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KEO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The KEO Counterbore: For M3.5 Screw is a built-in-pilot counterbore from KEO, designed for M3.5 screws. It features a 6.5 mm bore diameter and a 3.9 mm pilot diameter, with a TiN coated cobalt construction. This standard product is identified by manufacturer part number 902-000-213.

Frequently Asked Questions

What is the KEO Counterbore for M3.5 screw used for?

This KEO counterbore is used to create a flat-bottomed recess for the head of an M3.5 screw, allowing it to sit flush with or below the workpiece surface. It is commonly applied in metalworking and machining operations where precise fastener seating is required.

What are the specifications of the KEO Counterbore 902-000-213?

The KEO Counterbore 902-000-213 is a built-in-pilot design for M3.5 screws. It has a 6.5 mm bore diameter, a 3.9 mm pilot diameter, and a TiN coated cobalt construction. This standard tool is manufactured by KEO under part number 902-000-213.

Where to buy the KEO Counterbore 902-000-213 worldwide?

3G Electric supplies the KEO Counterbore 902-000-213 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 M3.5 screws?

Select a counterbore with a pilot diameter matching the screw's clearance hole (3.9 mm for M3.5) and a bore diameter equal to the screw head size (6.5 mm). Ensure the tool is compatible with your workpiece material; TiN coated cobalt offers wear resistance for harder materials.

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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