KEO Countersink: 100°, 1 Flute, 1/4 in Body Dia

A KEO 100° countersink creates a conical recess for flat-head screws in metalworking. Its single-flute cobalt design cuts fast and resists heat, making it ideal for production machining, tool-and-die work, and aerospace or automotive applications where precision and durability are required.

The KEO 919-000-625 is a 100° single-flute countersink with a 1/4 in body diameter, made from cobalt steel. It is designed for fast cutting in hard materials. The 100° angle suits metric flat-head fasteners. Cobalt construction provides heat resistance for extended tool life in industrial use.

3G Electric supplies KEO countersinks like the 919-000-625 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. As a global industrial sourcing partner, we provide genuine KEO tooling across 14 departments, including cutting tools, with specialist support for your application.

Match the countersink angle to your fastener head—100° for metric flat-head screws. Choose cobalt for hard steels or high-speed steel for softer materials. Single-flute designs cut faster but require stable setups. For production runs, confirm body diameter fits your toolholder. 3G Electric can help you select the correct KEO part.