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KEO 60° Four-Flute Machine Countersink - Four-Flute Machine Countersinks
KEOFour-Flute Machine Countersinks

KEO 60° Four-Flute Machine Countersink

The KEO Countersink: 60° is a four-flute machine countersink with a 1 3/4 in body diameter and 3/4 in shank, made from AlTiN coated cobalt (MPN 917-000-839). This tool is designed for precision chamfering and…

SKU 3G-OTH-185962

Also listed as: 917000839 · 917 000 839

Brand
KEO
Item
60° Four-Flute Machine Countersink
Part Number
917-000-839
Category
Four-Flute Machine Countersinks
Available to Order
Also known as:917-000-839KEO
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

KEO
Manufacturer Part Number
917-000-839
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: 60° is a four-flute machine countersink with a 1 3/4 in body diameter and 3/4 in shank, made from AlTiN coated cobalt (MPN 917-000-839). This tool is designed for precision chamfering and deburring operations in industrial machining applications.

Frequently Asked Questions

What is the KEO 60° countersink used for?

The KEO 60° countersink is used to create a conical recess in metal or plastic for flush-mounting flat-head screws. Its 4-flute design provides smooth cutting and chip evacuation, making it suitable for precision deburring and countersinking in industrial machining applications.

What are the specifications of the KEO 60° countersink?

This KEO countersink has a 60° included angle, 4 flutes, a 1 3/4 in body diameter, and a 3/4 in shank. It features AlTiN coated cobalt construction for heat resistance and extended tool life. The manufacturer part number is 917-000-839.

Where to buy the KEO 60° countersink worldwide?

3G Electric supplies the KEO 60° countersink worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this AlTiN coated cobalt countersink.

How to select the correct KEO countersink for your application?

Select a KEO countersink based on the screw head angle (typically 60° or 82°), material hardness, and shank compatibility with your tool holder. For hard metals, choose AlTiN coated cobalt like this 4-flute model. Match body diameter to the screw head size for proper seating.

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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