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KEO Countersink: 100°, 6 Flute, 3 in Body Dia, 1 in Shank - Smooth-Finish Six-Flute Countersinks
KEOSmooth-Finish Six-Flute Countersinks

KEO Countersink: 100°, 6 Flute, 3 in Body Dia, 1 in Shank

KEO Smooth-Finish Six-Flute Countersinks.

SKU 3G-OTH-188092

Brand
KEO
Item
Countersink: 100°, 6 Flute, 3 in Body Dia, 1 in Shank
Category
Smooth-Finish Six-Flute Countersinks
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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
55577

Technical Documents

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

Product Description

KEO Smooth-Finish Six-Flute Countersinks.

Frequently Asked Questions

What is the KEO 55577 countersink used for?

The KEO 55577 is a 100°, 6-flute countersink used for deburring and countersinking holes in metal, especially hardened steels. Its cobalt construction and smooth-finish design provide clean, chatter-free results in industrial machining and tool-and-die applications.

What are the specifications of the KEO 55577 countersink?

The KEO 55577 is a 100° countersink with 6 flutes, a 3-inch body diameter, and a 1-inch shank. It is made of cobalt steel for durability in high-temperature cutting. The manufacturer part number is 55577, and it is designed for smooth-finish applications.

Where to buy the KEO 55577 countersink worldwide?

3G Electric supplies the KEO 55577 countersink worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this item to any country.

How to select the right KEO countersink for my application?

Select a KEO countersink based on hole angle, material, and finish requirements. For hardened steel, choose cobalt steel like the 55577. Match the body diameter to your hole size and shank to your tool holder. Consult a machining guide for optimal speeds and feeds.

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

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Compatible alternatives & equivalents

Cross-referenced by specification & description
KEO Countersink: 100°, 6 Flute, 2 1/2 in Body Dia, 1 in Shank, Cobalt (MPN 55576)
KEO
KEO Countersink: 100°, 6 Flute, 2 1/2 in Body Dia, 1 in Shank, Cobalt (MPN 55576)
KEO Countersink: 100°, 6 Flute, 1 3/4 in Body Dia, 3/4 in Shank, Cobalt (MPN 919-000-829)
KEO
KEO Countersink: 100°, 6 Flute, 1 3/4 in Body Dia, 3/4 in Shank, Cobalt (MPN 919-000-829)
KEO Countersink: 100°, 6 Flute, 1 1/2 in Body Dia, 3/4 in Shank, Cobalt (MPN 919-000-827)
KEO
KEO Countersink: 100°, 6 Flute, 1 1/2 in Body Dia, 3/4 in Shank, Cobalt (MPN 919-000-827)
KEO Countersink: 100°, 6 Flute, 2 in Body Dia, 3/4 in Shank, Cobalt (MPN 919-000-831)
KEO
KEO Countersink: 100°, 6 Flute, 2 in Body Dia, 3/4 in Shank, Cobalt (MPN 919-000-831)
KEO Countersink: 100°, 6 Flute, 1 in Body Dia, Cobalt (MPN 919-000-823)
KEO
KEO Countersink: 100°, 6 Flute, 1 in Body Dia, Cobalt (MPN 919-000-823)
KEO Countersink: 100°, 6 Flute, 1 1/4 in Body Dia, Cobalt (MPN 919-000-825)
KEO
KEO Countersink: 100°, 6 Flute, 1 1/4 in Body Dia, Cobalt (MPN 919-000-825)

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