KEO Countersink: 110°, 6 Flute, 7/8 in Body Dia

The KEO 55590 is a 110°, six-flute countersink designed for producing smooth, chatter-free chamfers on drilled holes in metal. It is commonly used in machining and fabrication for deburring and countersinking screw holes, especially in harder materials where cobalt tooling provides extended life.

The KEO 55590 is a smooth-finish six-flute countersink with a 110° included angle and a 7/8 in body diameter. It is made from cobalt steel for heat resistance and durability. The manufacturer part number is 55590, and it is designed for precision chamfering in industrial applications.

3G Electric supplies the KEO 55590 countersink worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to place an order or request a quote for this cobalt six-flute countersink.

Select a KEO countersink based on the required chamfer angle and material. The 110° six-flute design suits standard screw heads and provides a smooth finish. For harder metals, choose cobalt tooling like the 55590. Match the body diameter to your hole size and ensure proper RPM for the material.