Hertel H-81154L01060 Combo Drill Countersink 1/8 in Hss

Product Description

The HERTEL H-81154L01060 is a combination drill and countersink designed for creating pilot holes and countersunk seats in a single operation. Built from high-speed steel with a bright, uncoated finish, this tool features a 1/8-inch body diameter, a 3/64-inch drill point diameter, and a 6-inch overall length suited for long-reach applications. The 118-degree drill point angle and 82-degree included countersink angle make it a practical choice for metalworking, fabrication, and general machining tasks. It is sold individually and is sized as a trade size 1 countersink.

This combo drill countersink is intended for countersinking operations in metal, wood, and composite materials where a pre-drilled pilot hole and flush or recessed seat are needed in one pass. The long-length design at 6 inches overall is well suited for applications requiring extended reach or work in deeper cavities. The double-end style and plain cutting edge configuration are appropriate for use in standard machine shops, job shops, and maintenance environments. Machinists, tool and die technicians, and maintenance mechanics are the typical end users.

Key Features

• Combination drill and countersink performs pilot drilling and countersinking in a single step
• High-speed steel construction provides durability across a range of common workpiece materials
• Long-length tool at 6 inches overall length for extended reach applications
• 118-degree drill point angle with 82-degree included countersink angle
• Bright, uncoated finish with plain cutting edge for general-purpose use
• Double-end type for added tool life before replacement

Compatibility

Designed as a general-purpose combination drill countersink compatible with standard drill presses, milling machines, and CNC machining centers accepting 1/8-inch shank tooling.

Installation Notes

This tool is installed and operated by qualified machinists or maintenance technicians using appropriate machine tool holders. Ensure the spindle is fully stopped and power is locked out before changing or inspecting tooling. Secure the workpiece firmly before beginning the operation to prevent walking or deflection at the drill point. Follow applicable shop safety standards and machine manufacturer guidelines for speeds and feeds based on workpiece material.