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KEO Countersink: 90°, 4 Flute, 1 3/4 in Body Dia, 3/4 in Shank - Four-Flute Machine Countersinks
KEOFour-Flute Machine Countersinks

KEO Countersink: 90°, 4 Flute, 1 3/4 in Body Dia, 3/4 in Shank

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
Countersink: 90°, 4 Flute, 1 3/4 in Body Dia, 3/4 in Shank
Category
Four-Flute Machine Countersinks
Available to Order
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

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

Technical Documents

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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
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 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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