Hertel H-81186050600 Combo Drill Countersink Size 5 Cobalt

Product Description

The HERTEL H-81186050600 is a combination drill and countersink designed for precision metalworking and fabrication applications. This Size 5 tool features a 7/16 inch body diameter, a 3/16 inch drill point diameter, and a 6 inch overall length. Constructed from cobalt high-speed steel with a bright uncoated finish, it is built to handle tough materials including stainless steel, high-alloy steels, and hardened workpieces. The 118-degree drill point angle and 60-degree included angle make it well suited for accurate center drilling and countersinking in a single pass, reducing setup time on the machine.

This combo drill countersink is used in machine shops, manufacturing facilities, and metal fabrication environments. It is a long-length tool with a plain cutting edge style and double end type, making it appropriate for lathe center drilling, spotting, and countersinking operations on CNC and manual machines. Machinists, tool and die makers, and fabricators working with ferrous and exotic alloys will find this tool compatible with standard drill press and lathe setups where cobalt tooling is required for heat resistance and edge retention.

Key Features

• Cobalt construction for superior heat and wear resistance in hard materials
• 118-degree drill point angle for accurate center drilling and spotting
• 60-degree included countersink angle for standard countersink profiles
• Double end design extends usable tool life
• Long-length at 6 inches overall for deep-reach applications
• Bright uncoated finish for use across a wide range of materials without coating compatibility concerns

Compatibility

Designed as an OEM-style replacement and standard tooling option for Size 5 combo drill countersink applications in drill press, lathe, and CNC setups requiring a 7/16 inch body diameter cobalt combination tool.

Installation Notes

This tool is installed and used by machinists and skilled fabricators on lathes, drill presses, and CNC machining centers. Ensure the machine spindle is fully stopped and locked out before changing or seating the tool. Use appropriate collets or tool holders rated for the 7/16 inch body diameter. Follow applicable shop safety standards and manufacturer feed and speed recommendations for cobalt tooling when working with hardened or exotic alloys.