Keo 907-000-157 Combo Drill Countersink Size 6 Hss

Product Description

The KEO 907-000-157 is a combination drill and countersink designed to perform both drilling and countersinking operations in a single tool pass. Built from high-speed steel (HSS) with a bright, uncoated finish, it is suited for general metalworking, fabrication, and production environments where precision spotting and countersinking are required. The tool features a 1/2 inch body diameter, a 7/32 inch drill point diameter, and a 118-degree drill point angle, making it appropriate for center drilling and countersinking at a 60-degree included angle. It is installed by machinists and tool and die tradespeople working with drill presses, lathes, and CNC equipment.

This combo drill countersink is configured for right-hand cutting with a plain cutting edge style and a double end type, allowing both ends to be used before the tool is retired. The long-length designation and 4 inch overall length give it additional reach in deeper setups or fixtures where a standard-length tool would not clear the workpiece or holding equipment. It is well suited for production shops, maintenance facilities, and fabrication operations requiring consistent countersink geometry on ferrous and non-ferrous materials.

Key Features

• High-speed steel construction for durability across a range of workpiece materials
• 118-degree drill point angle with 60-degree included countersink angle
• Double end design extends tool life before replacement is needed
• Right-hand cutting direction compatible with standard drill press and lathe setups
• Long-length tool at 4 inches overall length for added reach in fixturing applications
• Bright uncoated finish suitable for use with cutting fluids on metals

Compatibility

Designed as an OEM-style replacement or direct-use combo drill countersink for trade size 6 applications requiring a 1/2 inch body diameter and 7/32 inch drill point in standard drill press, lathe, or CNC spindle setups.

Installation Notes

Installation and use should be performed by qualified machinists or metal fabrication tradespeople familiar with rotary cutting tools. Secure the tool firmly in the appropriate collet or chuck and verify runout before engaging the workpiece. Always power down and de-energize the machine before changing tooling. Use appropriate cutting fluid for the material being worked to extend tool life and maintain dimensional accuracy.