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KEO 82° Four-Flute Machine Countersink, 5/8 in Body Dia, Cobalt Steel - Four-Flute Machine Countersinks
KEOFour-Flute Machine Countersinks

KEO 82° Four-Flute Machine Countersink, 5/8 in Body Dia, Cobalt Steel

KEO Four-Flute Machine Countersinks.

SKU 3G-OTH-185982

Also listed as: 919000531 · 919 000 531

Brand
KEO
Item
82° Four-Flute Machine Countersink, 5/8 in Body Dia, Cobalt Steel
Part Number
919-000-531
Category
Four-Flute Machine Countersinks
Available to Order
Also known as:919-000-531KEO
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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
919-000-531

Technical Documents

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

Product Description

KEO Four-Flute Machine Countersinks.

Frequently Asked Questions

What is the KEO 82° countersink used for?

The KEO 82° countersink is used to create a conical recess for flat-head screws in metalworking. Its 4-flute design provides smooth cutting and chip evacuation. Common applications include aerospace, automotive, and general machining where precise countersinking is required.

What are the specifications of the KEO 4-flute countersink?

The KEO countersink has an 82° included angle, 4 flutes, and a 5/8 in body diameter. It is made from cobalt steel for heat resistance and durability. The manufacturer part number is 919-000-531. This tool is designed for machine use in drill presses or CNC equipment.

Where to buy KEO countersinks worldwide?

You can source the KEO 82° countersink 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 on this cobalt steel countersink.

How to select the correct KEO countersink size?

Select the KEO countersink based on the screw head angle and body diameter. For flat-head screws, use an 82° countersink. The 5/8 in body diameter suits medium-sized holes. Ensure the tool matches your material—cobalt steel is ideal for harder metals like stainless steel.

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
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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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This four-flute machine countersink is made of TiN coated high speed steel for wear resistance. It has a 2 in body diameter and a 3/4 in shank. The 60° angle and four-flute design reduce chatter and produce a smooth finish. Used for creating conical recesses in metal or plastic for flush-mounting flat-head screws, as well as chamfering and deburring holes
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This four-flute machine countersink is made of TiN coated high speed steel for wear resistance. It has a 2 in body diameter and a 3/4 in shank. The 60° angle and four-flute design reduce chatter and produce a smooth finish. Used for creating conical recesses in metal or plastic for flush-mounting flat-head screws, as well as chamfering and deburring holes
This KEO countersink features a 90° included angle and four flutes, with a 1-inch body diameter made from cobalt steel. It is used for deburring and chamfering holes in metal workpieces, creating a clean seat for flat-head screws. Suitable for drill presses, milling machines, or handheld tools in machining and fabrication applications
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This KEO countersink features a 90° included angle and four flutes, with a 1-inch body diameter made from cobalt steel. It is used for deburring and chamfering holes in metal workpieces, creating a clean seat for flat-head screws. Suitable for drill presses, milling machines, or handheld tools in machining and fabrication applications

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