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KEO Counterbore: For #10 Screw, 5/16 in Bore Dia, 0.19 in Pilot Dia - Built-in-Pilot Counterbores
KEOBuilt-in-Pilot Counterbores

KEO Counterbore: For #10 Screw, 5/16 in Bore Dia, 0.19 in Pilot Dia

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

Brand
KEO
Item
Counterbore: For #10 Screw, 5/16 in Bore Dia, 0.19 in Pilot Dia
Category
Built-in-Pilot Counterbores
Available to Order
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Technical Specifications

KEO
Manufacturer Part Number
902-000-321
Type
AlTiN Coated Cobalt
Bore Dia
5/16 in
Pilot Dia
0.19 in
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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
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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