Hertel H-81185060400 Combo Drill Countersink Size 6 Hss

Product Description

The HERTEL H-81185060400 is a combination drill and countersink tool designed to drill a pilot hole and create a 60-degree countersink in a single operation. Built from high-speed steel (HSS) with a bright, uncoated finish, this tool handles both steps simultaneously, reducing setup time and tool changes on the bench or drill press. The body diameter is 1/2 inch, the drill point diameter is 7/32 inch, and the drill point length is 7/32 inch. Overall length is 4 inches. The 118-degree drill point angle is standard for general-purpose drilling in steel, aluminum, and similar materials. This tool suits machinists, pipefitters, and fabricators working in metal fabrication and industrial maintenance applications.

This combo drill countersink is sized for trade size 6 fastener applications and is intended for countersinking operations where a plain cutting edge and double-end configuration provide extended tool life. It is a long-length tool, making it suitable for reaching into deeper workpieces or fixtures. The 60-degree included angle is appropriate for standard flat-head fastener seating. This tool is not aircraft style and does not accept an insertable cutter head, making it a straightforward, solid-body option for shop or field use.

Key Features

• Combination drill and countersink performs pilot drilling and countersinking in one pass
• High-speed steel construction provides durability across ferrous and non-ferrous materials
• Bright, uncoated finish for general-purpose use without added coating overhead
• Double-end design extends usable tool life
• 118-degree drill point angle suits standard general-purpose drilling applications
• Long-length configuration for access to deeper workpieces or fixtures

Compatibility

Designed as a standard combo drill countersink for trade size 6 fastener applications, compatible with drill presses and hand drills accepting a 1/2-inch body shank in typical metal fabrication and maintenance environments.

Installation Notes

This tool is installed and operated by machinists, pipefitters, or maintenance technicians using a drill press or handheld drill. Secure the workpiece firmly before operation and confirm the spindle is fully stopped before changing or inspecting the tool. Use appropriate cutting fluid when drilling ferrous metals to maintain edge life. Follow applicable shop safety and OSHA standards for rotating cutting tools.