Keo 919-000-567 Countersink 1-1/2 in 60 Degree Cobalt

Product Description

The KEO 919-000-567 is a single-flute cobalt steel countersink designed for chamfering, countersinking, and deburring operations in metalworking and fabrication applications. The tool features a 1.5-inch head diameter, a 60-degree included angle, and a 3/4-inch shank diameter, making it suited for use in standard drill presses, milling machines, and CNC setups. Cobalt steel construction provides elevated heat resistance and edge retention compared to standard high-speed steel, which is an advantage when working harder workpiece materials. The overall length of 3.25 inches keeps the tool rigid and minimizes deflection during cutting passes.

This countersink is used in machine shops, fabrication facilities, and production environments where clean, precise chamfers and countersunk holes are required. The single-flute design reduces chatter and produces a smooth finish on the countersink seat. It is appropriate for use on ferrous metals, stainless steel, and other materials where cobalt tooling is specified. The 60-degree included angle matches standard fastener head geometries commonly found in industrial and structural assemblies.

Key Features

• 1.5-inch head diameter for wide chamfer coverage
• 60-degree included angle suits common fastener head profiles
• Single-flute design minimizes chatter and improves surface finish
• Cobalt steel construction delivers superior heat and wear resistance over standard HSS
• 3/4-inch shank diameter fits standard collets and drill press chucks
• Suited for chamfering, countersinking, and deburring in a single tool

Compatibility

Designed for use with drill presses, milling machines, and CNC machining centers accepting a 3/4-inch straight shank. Suitable for chamfering and countersinking operations on ferrous and harder workpiece materials requiring cobalt-grade tooling.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling technician familiar with rotating cutting tools. Secure the shank fully in the collet or chuck before operation and verify runout is within acceptable limits. Always reduce spindle speed appropriately for the workpiece material and tool diameter, and use cutting fluid where recommended by shop practice. Inspect the cutting edge for wear or chipping before each use and replace the tool if damage is present.