Keo 906-000-027 Combo Drill Countersink 2/0 Hss Tin

Product Description

The KEO 906-000-027 is a combination drill and countersink designed for simultaneous center drilling and countersinking in a single operation. Built from high-speed steel with a titanium nitride coating, it delivers extended cutting life on steel, aluminum, and other common workpiece materials. The tool carries a trade size of 2/0, a body diameter of 0.125 inches, and an overall length of 1.25 inches. The 118-degree drill point angle suits general-purpose center drilling, while the 60-degree included angle on the countersink portion conforms to standard countersink geometry. Right-hand cutting direction and a plain cutting edge make this a straightforward drop-in for most machining setups.

This combo drill countersink is suited for use on CNC machining centers, manual mills, and drill presses where center holes must be established before turning between centers or where a countersink seat is required. The aircraft style designation indicates it meets the dimensional standards common in precision and aerospace-adjacent machining applications. Its double-end design extends tool life by providing two usable cutting ends before replacement is needed.

Key Features

• High-speed steel construction with titanium nitride coating for wear resistance
• Double-end design provides two cutting ends per tool
• 118-degree drill point angle for standard center drilling applications
• 60-degree included countersink angle for common countersink seat geometry
• Aircraft style dimensional standard for precision fitment
• Right-hand cut, plain cutting edge style

Compatibility

Designed as an OEM-style replacement or direct-use combination drill countersink for standard machining setups requiring a 2/0 trade size center drill with countersink geometry.

Installation Notes

Installation is performed by machining professionals in mill or drill press setups. Secure the tool firmly in an appropriate collet or drill chuck rated for the shank diameter before operation. Ensure the machine spindle is fully stopped before inserting or removing the tool. Follow applicable shop safety standards and machine tool manufacturer guidelines for speed and feed selection based on workpiece material.