Keo 906-000-089 Combo Drill Countersink No. 2 Hss

Product Description

The KEO 906-000-089 is a combination drill and countersink designed to drill a pilot hole and form a 90-degree countersink in a single pass. Built from high-speed steel (HSS) with a titanium nitride (TiN) coating, this tool delivers extended wear resistance in production and maintenance drilling applications. The No. 2 trade size features a 3/16-inch body diameter, a 5/64-inch drill point diameter, and a 1-7/8-inch overall length. Right-hand cutting direction and a plain cutting edge style make it straightforward to run in any standard drill press, CNC machine, or hand drill. Machinists, maintenance technicians, and fabricators are the primary users of this tool.

This combo drill countersink is suited for light-duty countersinking tasks in metal fabrication shops, maintenance facilities, and production environments. The 90-degree included angle and 118-degree drill point angle match the most common countersunk fastener geometry used in general machining. The double-end design extends tool life by providing two usable ends before the tool is retired. It is appropriate for use in steel, aluminum, and similar machinable materials where a TiN finish provides added lubricity and heat resistance.

Key Features

• Combination drill and countersink in one tool - pilot hole and countersink formed in a single operation
• High-speed steel construction with titanium nitride (TiN) coating for extended tool life
• 90-degree included angle matches standard countersunk fastener geometry
• 118-degree drill point angle for general-purpose drilling
• Double-end design provides two cutting ends per tool
• Right-hand cutting direction; plain cutting edge style for straightforward setup

Compatibility

Designed as a general-purpose combination drill countersink for use in standard drill presses, CNC machining centers, and hand-held drilling equipment that accept straight-shank tooling at the No. 2 trade size.

Installation Notes

Secure the tool firmly in an appropriate collet or drill chuck before operation and verify runout is within acceptable limits for the application. Always wear appropriate eye protection and ensure the workpiece is clamped securely before drilling. Use a cutting fluid or lubricant when working in steel to reduce heat buildup and extend tool life. Inspect both cutting ends for wear or chipping before each use.