Keo 907-000-167 Combo Drill Countersink Size 6 Hss

Product Description

The KEO 907-000-167 is a combination drill and countersink designed to drill a pilot hole and form a 60-degree countersink in a single pass. The body diameter is 1/2 inch with a 7/32-inch drill point diameter and a 7/32-inch drill point length. Overall length is 6 inches, qualifying it as a long-length tool. Constructed from high-speed steel (HSS) with a bright, uncoated finish, it is suited for metalworking applications where machinists, tool-and-die workers, and maintenance technicians require a reliable center-drilling and countersinking solution without tool changes.

This combo drill countersink is built for countersinking operations in ferrous and non-ferrous materials. The trade size 6 designation and double end-type construction extend tool life by providing two usable ends. The right-hand cutting direction and plain cutting edge style make it compatible with standard drill presses, milling machines, and CNC setups. It is a long-length tool, providing additional reach for deeper workpieces or fixture setups where a standard-length tool would not clear. Typical users include machinists and fabrication shops performing countersink work for flathead fastener seating.

Key Features

• Combination drill and countersink completes pilot drilling and countersinking in one operation
• 60-degree included angle for standard countersink profiles
• 118-degree drill point angle for positive engagement on steel and common metals
• Double-end design provides two cutting ends, extending usable tool life
• Long-length at 6 inches overall for extended reach applications
• High-speed steel construction with bright uncoated finish for general-purpose metalworking

Compatibility

Designed as a general-purpose combo drill countersink suitable for use in standard drill chucks on drill presses, milling machines, and CNC equipment accepting 1/2-inch body diameter tooling.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom technicians familiar with cutting tool setup and workholding. Secure the workpiece firmly before operation and verify spindle speed is appropriate for the material being cut. Inspect both cutting ends for wear or damage before use, and replace the tool if chipping or excessive wear is observed. Do not use damaged tooling, as failure can result in injury or workpiece damage.