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3G Electric
KEO TiN Coated Cobalt Built-in-Pilot Counterbore, 10 mm Bore, 5.3 mm Pilot - Built-in-Pilot Counterbores
KEOBuilt-in-Pilot Counterbores

KEO TiN Coated Cobalt Built-in-Pilot Counterbore, 10 mm Bore, 5.3 mm Pilot

The KEO Counterbore: For M5 Screw is a Built-in-Pilot Counterbore from KEO, designed for standard applications. It features a 10 mm bore diameter, a 5.3 mm pilot diameter, and a TiN coated cobalt construction…

SKU 3G-OTH-202274

Also listed as: 902000228 · 902 000 228

Brand
KEO
Item
TiN Coated Cobalt Built-in-Pilot Counterbore, 10 mm Bore, 5.3 mm Pilot
Part Number
902-000-228
Category
Built-in-Pilot Counterbores
Available to Order
Also known as:902-000-228KEO
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

KEO
Manufacturer Part Number
902-000-228
Type
TiN Coated Cobalt
Bore Dia
10 mm
Pilot Dia
5.3 mm

Technical Documents

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

Product Description

The KEO Counterbore: For M5 Screw is a Built-in-Pilot Counterbore from KEO, designed for standard applications. It features a 10 mm bore diameter, a 5.3 mm pilot diameter, and a TiN coated cobalt construction, identified by manufacturer part number 902-000-228.

Frequently Asked Questions

What is a KEO counterbore for M5 screw used for?

A KEO counterbore for M5 screw creates a flat-bottomed recess for socket-head cap screws, allowing the screw head to sit flush with or below the workpiece surface. It is used in metalworking, machining, and assembly applications where a clean, flush finish is required.

What are the specifications of the KEO counterbore 902-000-228?

The KEO counterbore 902-000-228 has a 10 mm bore diameter, a 5.3 mm pilot diameter, and is made of TiN coated cobalt. It is designed for M5 screws and is a standard built-in-pilot counterbore from KEO.

Where to buy KEO counterbore 902-000-228 worldwide?

3G Electric supplies the KEO counterbore 902-000-228 worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to select the correct KEO counterbore for M5 screws?

Select a KEO counterbore with a pilot diameter matching the screw's clearance hole (5.3 mm for M5) and a bore diameter matching the screw head (10 mm). Ensure the tool is compatible with your material and machine, and consider coating like TiN for extended tool life.

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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