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KEO AlTiN Coated Cobalt Four-Flute Machine Countersink - Four-Flute Machine Countersinks
KEOFour-Flute Machine Countersinks

KEO AlTiN Coated Cobalt Four-Flute Machine Countersink

The KEO Countersink: 90° is a four-flute machine countersink with a 1 3/4 in body diameter and 3/4 in shank, featuring an AlTiN coated cobalt construction (MPN 917-000-831). This KEO tool is designed for precision…

SKU 3G-OTH-186019

Also listed as: 917000831 · 917 000 831

Brand
KEO
Item
AlTiN Coated Cobalt Four-Flute Machine Countersink
Part Number
917-000-831
Category
Four-Flute Machine Countersinks
Available to Order
Also known as:917-000-831KEO
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Technical Specifications

KEO
Manufacturer Part Number
917-000-831
Type
AlTiN Coated Cobalt
Flute
4
Shank
3/4 in
Body Dia
1 3/4 in

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

Product Description

The KEO Countersink: 90° is a four-flute machine countersink with a 1 3/4 in body diameter and 3/4 in shank, featuring an AlTiN coated cobalt construction (MPN 917-000-831). This KEO tool is designed for precision chamfering and deburring operations.

Frequently Asked Questions

What is the KEO 917-000-831 countersink used for?

The KEO 917-000-831 is a 90°, 4-flute countersink designed for deburring and chamfering holes in metal. Its AlTiN-coated cobalt construction suits high-speed machining on steel, stainless steel, and cast iron. Common in automotive, aerospace, and general manufacturing for creating clean, countersunk fastener seats.

What are the specifications of the KEO 917-000-831 countersink?

This KEO countersink has a 90° included angle, 4 flutes, 1 3/4 in body diameter, and 3/4 in shank diameter. It features AlTiN coating on cobalt steel for heat resistance and wear life. The MPN is 917-000-831. It is a four-flute machine countersink for industrial drilling applications.

Where to buy the KEO 917-000-831 countersink worldwide?

3G Electric supplies the KEO 917-000-831 countersink to global buyers. We handle full logistics, customs clearance, and delivery to worldwide destinations. As a sourcing partner, we provide this AlTiN-coated cobalt countersink for industrial deburring needs. Contact us for availability and lead time.

How to select the right KEO countersink for my application?

Select a KEO countersink based on hole angle (90° for standard fasteners), flute count (4-flute for smoother finish), and coating (AlTiN for high-heat materials). Match body diameter to hole size and shank to your tool holder. For hard metals, cobalt steel with AlTiN coating, as on the 917-000-831, improves tool life.

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 four-flute machine countersinks. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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