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KEO Built-in-Pilot Counterbore, TiN Coated Cobalt, 3/4 in Bore, 0.5 in Pilot - Built-in-Pilot Counterbores
KEOBuilt-in-Pilot Counterbores

KEO Built-in-Pilot Counterbore, TiN Coated Cobalt, 3/4 in Bore, 0.5 in Pilot

The KEO Built-in-Pilot Counterbore is a standard tool designed for 1/2" screws, featuring a 3/4 in bore diameter and a 0.5 in pilot diameter. It is constructed from TiN coated cobalt, as specified by manufacturer…

SKU 3G-OTH-202245

Also listed as: 902000153 · 902 000 153

Brand
KEO
Item
Built-in-Pilot Counterbore, TiN Coated Cobalt, 3/4 in Bore, 0.5 in Pilot
Part Number
902-000-153
Category
Built-in-Pilot Counterbores
Available to Order
Also known as:902-000-153KEO
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Technical Specifications

KEO
Manufacturer Part Number
902-000-153
Type
TiN Coated Cobalt
Bore Dia
3/4 in
Pilot Dia
0.5 in

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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 1/2" screws, featuring a 3/4 in bore diameter and a 0.5 in pilot diameter. It is constructed from TiN coated cobalt, as specified by manufacturer part number 902-000-153.

Frequently Asked Questions

What is a KEO counterbore used for?

A KEO counterbore is used to create a flat-bottomed recess in a workpiece, allowing a bolt or screw head to sit flush with or below the surface. This standard tool is designed for 1/2" screws and is commonly applied in metalworking and machining operations where a clean, countersunk finish is required.

What are the specifications of the KEO counterbore 902-000-153?

The KEO counterbore model 902-000-153 is a standard built-in-pilot tool for 1/2" screws. It has a 3/4 in bore diameter and a 0.5 in pilot diameter. The tool is made from TiN coated cobalt, providing wear resistance and extended tool life in industrial machining applications.

Where to buy KEO counterbore 902-000-153 worldwide?

You can source the KEO counterbore 902-000-153 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply this standard tool from KEO for your machining needs.

How to select the correct KEO counterbore for a 1/2" screw?

To select the correct KEO counterbore for a 1/2" screw, match the pilot diameter to the screw's clearance hole size and the bore diameter to the screw head. For this KEO model, the 0.5 in pilot fits the screw body, and the 3/4 in bore accommodates the head. Always verify the tool's standard type and TiN coated cobalt material for durability.

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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