Hertel H-81185060500 Combo Drill Countersink Hss

Product Description

The HERTEL H-81185060500 is a combination drill and countersink designed for simultaneous drilling and countersinking in a single pass. Built from high-speed steel (HSS) with a bright, uncoated finish, this tool is suited for use in metalworking, fabrication, and general machinist applications. It features a trade size of 6, a 1/2 inch body diameter, a 118-degree drill point angle, and a 60-degree included angle for the countersink portion. The 5 inch overall length and long-length designation make it practical for reaching into deeper workpieces without additional setup.

This combo drill countersink is used in machine shops, fabrication facilities, and maintenance environments where countersunk fastener seats must be prepared accurately. The double end type extends tool life by offering two usable cutting ends. The plain cutting edge style makes it straightforward to run in standard drill presses, lathes, or CNC setups. It is well suited for machinists, tool-and-die workers, and skilled tradespeople who need reliable, consistent countersink geometry on steel, aluminum, and similar materials.

Key Features

• Combination drill and countersink in a single tool — drills pilot hole and countersink in one pass
• High-speed steel construction for durability across a range of metals
• 118-degree drill point angle with 60-degree included countersink angle
• Double end design provides two cutting ends, extending tool service life
• Long-length designation at 5 inches overall length for added reach
• Bright uncoated finish — no coating buildup concerns during regrinding

Compatibility

Designed as a standard combo drill countersink for use with size 6 fastener applications requiring a 60-degree countersink seat. Fits standard drill chucks and collet holders accepting a 1/2 inch body diameter shank.

Installation Notes

Installation and use of this tool should be performed by qualified machinists or experienced tradespeople familiar with rotary cutting tools. Secure the workpiece firmly before operation, and ensure the spindle speed is appropriate for the material being cut. Inspect both cutting ends for wear or damage before each use, and never run a damaged or cracked tool. Follow applicable shop safety standards, including proper eye protection and secure workholding.