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KEO Counterbore: For 5/16" Screw, 15/32 in Bore Dia, 0.312 in Pilot Dia - Built-in-Pilot Counterbores
KEOBuilt-in-Pilot Counterbores

KEO Counterbore: For 5/16" Screw, 15/32 in Bore Dia, 0.312 in Pilot Dia

The KEO Counterbore is a built-in-pilot counterbore designed for 5/16" screws, featuring a 15/32 in bore diameter and a 0.312 in pilot diameter. This standard tool is constructed from TiN coated cobalt, as indicated…

SKU 3G-OTH-202233

Also listed as: 902000126 · 902 000 126

Brand
KEO
Item
Counterbore: For 5/16" Screw, 15/32 in Bore Dia, 0.312 in Pilot Dia
Category
Built-in-Pilot Counterbores
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

KEO
Manufacturer Part Number
902-000-126
Type
TiN Coated Cobalt
Bore Dia
15/32 in
Pilot Dia
0.312 in

Technical Documents

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

Product Description

The KEO Counterbore is a built-in-pilot counterbore designed for 5/16" screws, featuring a 15/32 in bore diameter and a 0.312 in pilot diameter. This standard tool is constructed from TiN coated cobalt, as indicated by manufacturer part number 902-000-126. It is a precision cutting tool from KEO for creating recessed holes.

Frequently Asked Questions

What is a KEO counterbore used for?

A KEO counterbore creates a recessed flat-bottom hole for a 5/16" screw head, allowing it to sit flush with the workpiece surface. This TiN coated cobalt tool is used in machining operations across industrial sectors like metal fabrication and equipment assembly.

What are the specifications of the KEO counterbore 902-000-126?

The KEO counterbore model 902-000-126 has a 15/32 in bore diameter, a 0.312 in pilot diameter, and is designed for 5/16" screws. It is a standard built-in-pilot type made from TiN coated cobalt for wear resistance.

Where to buy KEO counterbores worldwide?

3G Electric supplies KEO counterbores like the 902-000-126 to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive the correct precision cutting tool for your application.

How to select the right KEO counterbore for a 5/16" screw?

Select a KEO counterbore with a bore diameter matching the screw head size—15/32 in for a 5/16" screw—and a pilot diameter that fits the existing hole, such as 0.312 in. The TiN coated cobalt option provides extended tool life in harder materials.

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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