KEO 90° Four-Flute Machine Countersink, 2 in Body Dia, 3/4 in Shank, Cobalt

The KEO 917-000-299 is a 90°, 4-flute machine countersink used to create a conical recess for flat-head screws in metalworking. Its cobalt construction suits hardened steels and high-temperature alloys. Common applications include aerospace, automotive, and general machining where precise chamfering and deburring are required.

This KEO countersink has a 90° included angle, 4 flutes, a 2-inch body diameter, and a 3/4-inch shank. It is made from cobalt steel (MPN 917-000-299). The four-flute design provides smooth cutting and reduced chatter in production environments. It is designed for machine use in drill presses or CNC equipment.

3G Electric supplies the KEO 917-000-299 countersink worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time. We source and deliver this KEO tool to support your machining operations internationally.

Select a KEO countersink based on the screw head angle (typically 90° for flat-head screws), material hardness (cobalt for tough alloys), and shank size matching your tool holder. The 4-flute design suits production runs. Ensure the body diameter clears the workpiece. For specific advice, consult KEO's technical data or contact 3G Electric.