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KEO 902-000-321 AlTiN Coated Cobalt Built-in-Pilot Counterbore - Built-in-Pilot Counterbores
KEOBuilt-in-Pilot Counterbores

KEO 902-000-321 AlTiN Coated Cobalt Built-in-Pilot Counterbore

The KEO Counterbore: For #10 Screw is a built-in-pilot counterbore from KEO, designed for #10 screw applications. It features a 5/16 in bore diameter and a 0.19 in pilot diameter, with an AlTiN coated cobalt…

SKU 3G-OTH-202314

Also listed as: 902000321 · 902 000 321

Brand
KEO
Item
902-000-321 AlTiN Coated Cobalt Built-in-Pilot Counterbore
Part Number
902-000-321
Category
Built-in-Pilot Counterbores
Available to Order
Also known as:902-000-321KEO
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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
902-000-321
Type
AlTiN Coated Cobalt
Bore Dia
5/16 in
Pilot Dia
0.19 in

Technical Documents

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

Product Description

The KEO Counterbore: For #10 Screw is a built-in-pilot counterbore from KEO, designed for #10 screw applications. It features a 5/16 in bore diameter and a 0.19 in pilot diameter, with an AlTiN coated cobalt construction. This standard model, MPN 902-000-321, is suitable for precision counterboring tasks.

Frequently Asked Questions

What is the KEO Counterbore for #10 screw used for?

The KEO Counterbore for #10 screw creates a flat-bottomed recess for a screw head, allowing it to sit flush with or below the workpiece surface. It is used in precision machining and metalworking applications where a clean, countersunk fit is required for #10 fasteners.

What are the specifications of the KEO Counterbore 902-000-321?

The KEO Counterbore 902-000-321 has a 5/16 in bore diameter and a 0.19 in pilot diameter. It is made of AlTiN coated cobalt, designed for #10 screws. This standard built-in-pilot counterbore from KEO is suitable for precision counterboring tasks.

Where to buy KEO counterbores worldwide?

3G Electric supplies KEO counterbores worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source and deliver genuine KEO cutting tools like the 902-000-321 to your facility. Contact us for pricing and lead time.

How to select the correct KEO counterbore for a #10 screw?

Select a KEO counterbore with a pilot diameter matching the screw's clearance hole and a bore diameter equal to the screw head's outer dimension. For #10 screws, the KEO 902-000-321 uses a 0.19 in pilot and 5/16 in bore. Always verify the screw head size before ordering.

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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