KEO 100° Anti-Vibration Zero-Flute Countersink

A KEO 100° countersink is used to create a conical recess for flat-head screws in metalworking and machining applications. The 100° angle is common in aerospace and automotive industries. This zero-flute design reduces vibration and chatter, producing a smoother finish in materials like steel and aluminum.

The KEO 919-000-238 is a 100° countersink with zero flutes, a 3/8 in body diameter, and is made from cobalt steel. It is part of KEO's Anti-Vibration Zero-Flute Countersinks series. The cobalt construction provides heat resistance and durability for extended tool life in hard materials.

You can source KEO countersinks worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead times on the KEO 919-000-238 or other KEO tooling.

Select a KEO countersink based on the screw head angle (e.g., 100° for aerospace fasteners), material hardness (cobalt for tough alloys), and body diameter matching the screw size. Zero-flute designs minimize vibration for precision work. Always match the countersink angle to your fastener specification for proper seating.