Keo 906-000-094 Combo Drill Countersink No. 3 Hss

Product Description

The KEO 906-000-094 is a combination drill and countersink designed for simultaneous drilling and countersinking in a single operation. Built from high-speed steel with a bright, uncoated finish, this tool features a 1/4-inch body diameter, a 7/64-inch drill point diameter, and a 118-degree drill point angle with a 60-degree included angle on the countersink. The double-end design extends tool life by providing two usable cutting ends. Right-hand cutting direction and a plain cutting edge style make it straightforward to run on standard drill presses, lathes, and CNC machines. The 2-inch overall length keeps the tool rigid and resistant to deflection during use.

This combo drill countersink is suited for metalworking applications where center drilling and countersinking must be performed in one step. Machinists, toolmakers, and fabricators use this style of tool when preparing workpieces for lathe centers or creating countersunk seats for fasteners. It is appropriate for light-duty to medium-duty shop work in ferrous and non-ferrous metals. The No. 3 trade size is a commonly stocked size for general-purpose center drilling across a range of workpiece diameters.

Key Features

• Combination drill and countersink performs center drilling and countersinking in one pass
• High-speed steel construction provides good wear resistance in metalworking applications
• Double-end design doubles usable tool life before replacement is needed
• 118-degree drill point angle with 60-degree included angle suits standard countersinking work
• Bright, uncoated finish maintains dimensional accuracy and is easy to inspect for wear
• Right-hand cut compatible with standard drill press, lathe, and CNC spindle rotation

Compatibility

Designed as a standard No. 3 combo drill countersink for use in drill presses, lathes, and CNC machining centers with compatible collets or chucks that accept a 1/4-inch shank body diameter.

Installation Notes

Installation and use of this tool is typically performed by machinists or fabricators following standard shop practices. Secure the workpiece firmly before engaging the tool, and ensure the spindle speed is appropriate for the material being machined. Inspect both cutting ends for wear or chipping before use. Always wear appropriate eye protection and follow machine-specific lockout procedures when changing tooling.