We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

KEO Counterbore: For 7/16" Screw, 21/32 in Bore Dia, 0.437 in Pilot Dia - Built-in-Pilot Counterbores
KEOBuilt-in-Pilot Counterbores

KEO Counterbore: For 7/16" Screw, 21/32 in Bore Dia, 0.437 in Pilot Dia

The KEO Built-in-Pilot Counterbore is a standard tool designed for 7/16" screws, featuring a 21/32 in bore diameter and a 0.437 in pilot diameter. It is constructed with AlTiN coated cobalt, as specified by…

SKU 3G-OTH-202242

Also listed as: 902000309 · 902 000 309

Brand
KEO
Item
Counterbore: For 7/16" Screw, 21/32 in Bore Dia, 0.437 in Pilot Dia
Category
Built-in-Pilot Counterbores
Available to Order
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

KEO
Manufacturer Part Number
902-000-309
Type
AlTiN Coated Cobalt
Bore Dia
21/32 in
Pilot Dia
0.437 in

Technical Documents

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

Product Description

The KEO Built-in-Pilot Counterbore is a standard tool designed for 7/16" screws, featuring a 21/32 in bore diameter and a 0.437 in pilot diameter. It is constructed with AlTiN coated cobalt, as specified by manufacturer part number 902-000-309.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the KEO Counterbore 902-000-309 used for?

The KEO Counterbore 902-000-309 is a built-in-pilot counterbore used to create a flat-bottomed recess for 7/16" screw heads in metalworking. It is commonly applied in machining operations where a precise, countersunk fit is required for assembly, such as in automotive or industrial equipment manufacturing.

What are the specifications of the KEO Counterbore 902-000-309?

The KEO Counterbore 902-000-309 is a standard tool for 7/16" screws, with a 21/32 in bore diameter and a 0.437 in pilot diameter. It features AlTiN coated cobalt construction for wear resistance. The manufacturer part number is 902-000-309, and it is produced by KEO.

Where to buy the KEO Counterbore 902-000-309 worldwide?

You can source the KEO Counterbore 902-000-309 worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply this KEO tool to customers internationally.

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

To select the correct KEO counterbore for a 7/16" screw, match the pilot diameter to the screw's clearance hole and the bore diameter to the screw head size. For the 902-000-309, the pilot is 0.437 in and bore is 21/32 in. Always verify the tool's coating and material—AlTiN coated cobalt offers heat resistance for extended tool life.

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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KEO Counterbore: For 1" Screw, 1 9/16 in Bore Dia, 1.016 in Pilot Dia, AlTiN Coated Cobalt (MPN 902-000-296)

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