KEO Countersink: 110°, 6 Flute, 3/4 in Body Dia
SKU 3G-OTH-188248
Need installation or engineering help?
Ask a question
Frequently Asked Questions
What is the KEO 55089-TIN countersink used for?
The KEO 55089-TIN countersink is used for deburring and countersinking holes in metal, creating a smooth 110° chamfer for flush fastener seating. Its six-flute design reduces chatter, making it ideal for precision work in automotive, aerospace, and general machining applications.
What are the specifications of the KEO 55089-TIN countersink?
The KEO 55089-TIN is a 110°, six-flute countersink with a 3/4 in body diameter. It features a titanium nitride (TiN) coating on high-speed steel for extended tool life. The manufacturer part number is 55089-TIN, and it is designed for smooth-finish countersinking in metal.
Where to buy the KEO 55089-TIN countersink worldwide?
You can source the KEO 55089-TIN countersink through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring reliable supply for your machining operations.
How to select the right KEO countersink for your application?
Select the KEO countersink based on the required chamfer angle and hole size. For flush fasteners, match the angle to the fastener head (e.g., 110° for standard flat-head screws). The 55089-TIN with TiN coating is suitable for ferrous metals, while uncoated tools work for softer materials.
Used in
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.















