KEO Countersink: 100°, 6 Flute, 3 in Body Dia, 1 in Shank
SKU 3G-OTH-188092
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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.
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Common applications for KEOKEO 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.















