Keo 906-000-331 Combo Drill Countersink Metric Hss

Product Description

The KEO 906-000-331 is a combination drill and countersink tool designed for metric drilling and countersinking operations in a single pass. Made from high-speed steel with a bright, uncoated finish, it features a 120-degree drill point angle and a 60-degree included countersink angle. The double-end design extends tool life by providing two usable ends. With an 8.00 mm drill point diameter and a 20.00 mm body diameter, it suits precision metalworking and machining applications. Right-hand cutting geometry and a plain cutting edge style make setup straightforward for machinists working with standard CNC or manual equipment.

This combo drill countersink is suited for use in machine shops, fabrication facilities, and maintenance environments where metric countersinking is required. The double-end configuration and standard HSS construction make it a practical choice for production runs or toolroom use on steel, aluminum, and similar machinable materials. It is not aircraft-style and is not a long-length tool, positioning it as a standard-reach option for bench and turret work.

Key Features

• 120-degree drill point angle for metric countersinking in a single operation
• 60-degree included angle suits common metric countersink profiles
• Double-end design doubles usable tool life before replacement
• High-speed steel construction handles a broad range of machinable metals
• Bright, uncoated finish allows easy visual inspection of cutting edges
• Right-hand cut with plain cutting edge style for standard spindle compatibility

Compatibility

Designed as an OEM-style replacement or direct-use combo drill countersink for metric machining applications requiring a 120-degree drill point and 60-degree countersink angle in standard drill press, lathe, or CNC setups.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Secure the tool in a properly sized collet or drill chuck before operation and confirm the spindle is at a full stop before changing tooling. Follow applicable shop safety procedures and machine manufacturer guidelines for RPM and feed rates based on workpiece material. Inspect both cutting ends for wear before each use.