Keo 906-000-320 Combo Drill Countersink Metric Hss

Product Description

The KEO 906-000-320 is a combination drill and countersink designed for metric applications in high-speed steel (HSS) construction. It drills a pilot hole and forms a countersink in a single operation, reducing tool changes and improving hole accuracy. The tool features a 120-degree drill point angle, a 60-degree included angle, and a bright uncoated finish. With a 0.50 mm drill point diameter and 25.00 mm overall length, it is suited for precision work in metal fabrication, machine shops, and general manufacturing environments. Licensed machinists and tooling technicians are the primary users.

This combo drill countersink is intended for countersinking metric fastener seats in ferrous and non-ferrous metals. The plain cutting edge and right-hand cut make it compatible with standard CNC machining centers, drill presses, and manual lathes. It is a single-end, non-tapered tool with no insertable cutter head, making it a straightforward drop-in for center drilling and countersinking operations in production and maintenance settings.

Key Features

• Combination drill and countersink completes pilot hole and countersink in one pass
• 120-degree drill point angle with 60-degree included angle for metric fastener seat geometry
• High-speed steel construction provides durability across a range of metals
• Bright uncoated finish for general-purpose use without coating-related thermal limitations
• Right-hand cut, plain cutting edge for standard spindle direction compatibility
• Single-end, non-tapered design for straightforward toolholder setup

Compatibility

Designed as an OEM-style replacement or standard tooling addition for metric countersinking applications on drill presses, CNC machining centers, and manual lathes requiring a 0.50 mm drill point diameter.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Secure the tool in an appropriate collet or drill chuck rated for the shank diameter before use. Ensure the machine spindle is fully stopped before inserting or removing the tool. Follow applicable shop safety standards and machine manufacturer guidelines for speed and feed recommendations based on workpiece material.