Hertel H-81186080600 Combo Drill Countersink Cobalt

Product Description

The HERTEL H-81186080600 is a combination drill and countersink tool designed for drilling and countersinking in a single operation. Built from cobalt high-speed steel with a bright, uncoated finish, it delivers durability in hard and abrasive materials. The tool carries a trade size of 8, a body diameter of 3/4 inches, a drill point diameter of 3/4 inches, and an overall length of 6 inches. The 118-degree drill point angle suits general-purpose drilling, while the 60-degree included angle on the countersink portion seats flat-head fasteners to standard specifications. Machinists, tool-and-die workers, and metalworking tradespeople are the primary users of this style of tool.

This combo drill countersink is suited for use in machine shops, fabrication environments, and maintenance applications where flat-head screws or rivets require a properly seated countersink. The plain cutting edge style and double end type make it a practical choice for production and repair work on ferrous and non-ferrous metals. The long-length designation at 6 inches overall allows access in deeper setups where standard-length tools fall short. It is not aircraft-style and does not use an insertable cutter head, keeping setup straightforward on drill presses, lathes, or milling machines.

Key Features

• Cobalt high-speed steel construction for use in hard and abrasive metals
• Bright, uncoated finish suitable for general metalworking applications
• 118-degree drill point angle for standard drilling entry
• 60-degree included angle for countersinking flat-head fastener seats
• Double end type extends tool life by providing two usable ends
• Long-length at 6 inches overall for reach in deeper setups

Compatibility

Designed as a standard combo drill countersink for use with size 8 flat-head fasteners on drill presses, lathes, and milling machines in general metalworking and fabrication applications.

Installation Notes

This tool is installed and operated by machinists or metalworking tradespeople on powered machine tools. Secure the workpiece firmly before operation and confirm the spindle is fully stopped before changing or adjusting the tool. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain hole quality. Follow all shop safety procedures and machine manufacturer guidelines for proper chuck engagement and speed selection.