KEO 90° Anti-Vibration Zero-Flute Countersink, 3/8 in Body Dia, Cobalt

A KEO zero-flute countersink is used to create a conical recess for flat-head screws in metalworking. Its anti-vibration design reduces chatter, making it ideal for precision deburring and countersinking on CNC machines or manual tools. The cobalt construction suits harder materials like stainless steel.

The KEO 919-000-221 is a 90° countersink with 0 flutes, a 3/8 in body diameter, and is made from cobalt. It is part of KEO's Anti-Vibration Zero-Flute Countersinks line, designed for smooth, chatter-free operation. The cobalt material provides heat resistance and durability for industrial use.

You can source KEO countersinks like the 919-000-221 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead times; we supply genuine KEO tooling for manufacturing and maintenance applications.

Select a KEO countersink based on the screw head angle (typically 90° for flat-head screws), material hardness (cobalt for tough alloys), and body diameter matching the screw size. Zero-flute designs reduce vibration on CNC or manual tools. For best results, match the countersink to your workpiece material and machine spindle speed.