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KEO Oversized Built-in-Pilot Counterbore - Oversized Built-in-Pilot Counterbores
KEOOversized Built-in-Pilot Counterbores

KEO Oversized Built-in-Pilot Counterbore

The KEO Counterbore is an oversized built-in-pilot counterbore designed for 7/16" screws. It features a 1/64" oversized bore with a 43/64 in bore diameter and a 0.452 in pilot diameter (MPN 902-000-308). This tool is…

SKU 3G-OTH-184331

Also listed as: 902000308 · 902 000 308

Brand
KEO
Item
Oversized Built-in-Pilot Counterbore
Part Number
902-000-308
Category
Oversized Built-in-Pilot Counterbores
Available to Order
Also known as:902-000-308KEO
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
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Technical Specifications

KEO
Manufacturer Part Number
902-000-308
Bore Dia
43/64 in
Pilot Dia
0.452 in

Technical Documents

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

Product Description

The KEO Counterbore is an oversized built-in-pilot counterbore designed for 7/16" screws. It features a 1/64" oversized bore with a 43/64 in bore diameter and a 0.452 in pilot diameter (MPN 902-000-308). This tool is manufactured by KEO.

Frequently Asked Questions

What is the KEO oversized counterbore used for?

The KEO oversized counterbore is used to create a flat-bottomed recess for a 7/16" screw head, ensuring the screw sits flush 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 902-000-308?

The KEO counterbore 902-000-308 has a 43/64 in bore diameter, a 0.452 in pilot diameter, and is oversized by 1/64" for a 7/16" screw. It is a built-in-pilot type, manufactured by KEO, and designed for accurate counterboring in industrial applications.

Where to buy KEO counterbore 902-000-308 worldwide?

3G Electric supplies the KEO counterbore 902-000-308 worldwide, handling full logistics and customs clearance for global delivery. As a sourcing partner, we provide this oversized built-in-pilot counterbore to industrial buyers needing reliable tooling for 7/16" screw applications.

How to select the correct KEO counterbore for a 7/16" screw?

Select a KEO counterbore with a pilot diameter matching the screw's body size and a bore diameter slightly larger than the screw head. For a 7/16" screw, the 902-000-308 uses a 0.452 in pilot and a 43/64 in bore, with a 1/64" oversize for clearance.

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 oversized 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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This oversized built-in-pilot counterbore is made from cobalt and features a 1 13/64 in bore diameter with a 0.781 in pilot diameter. The 1/32" oversized design provides clearance for fasteners in metalworking applications, creating a flat-bottomed recess for screw heads to ensure proper seating and flush assembly
KEO
This oversized built-in-pilot counterbore is made from cobalt and features a 1 13/64 in bore diameter with a 0.781 in pilot diameter. The 1/32" oversized design provides clearance for fasteners in metalworking applications, creating a flat-bottomed recess for screw heads to ensure proper seating and flush assembly

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