Hertel H-81185050600 Combo Drill Countersink Hss 6 in

Product Description

The HERTEL H-81185050600 is a combination drill and countersink designed for simultaneous drilling and countersinking in a single operation. Built from high-speed steel with a bright, uncoated finish, this tool features a 3/16 inch drill point diameter, a 118-degree drill point angle, and a 60-degree included angle for the countersink. The 7/16 inch body diameter and 6 inch overall length make it well-suited for work requiring reach and rigidity. It is intended for machinists, tool and die technicians, and metalworking professionals who need consistent, repeatable countersunk holes without changing tools mid-operation.

This combo drill countersink is used in general metalworking and fabrication environments where countersunk fastener seats must be prepared accurately. The double-end configuration and plain cutting edge style make it a practical choice for production and maintenance applications. The tool is classified as long-length, adding versatility for setups where additional reach is required. No aircraft-style geometry is incorporated, making this a standard industrial option for conventional countersinking tasks in steel, aluminum, and similar materials.

Key Features

• Simultaneous drilling and countersinking in a single pass
• High-speed steel construction for durability across common metalworking materials
• 118-degree drill point angle with 60-degree included countersink angle
• Double-end design extends tool life by providing two usable ends
• Long-length classification at 6 inches OAL for added reach in deep or restricted setups
• Bright, uncoated finish suitable for general-purpose applications

Compatibility

Designed as a standard trade size 5 combo drill countersink for use in conventional metalworking and fabrication setups requiring a 3/16 inch pilot diameter with a 60-degree countersink angle.

Installation Notes

Installation is performed by machinists or toolroom personnel using a drill press, milling machine, or lathe with a compatible collet or chuck accepting a 7/16 inch body diameter. Secure the tool firmly before operation and confirm spindle speed is appropriate for the workpiece material and tool diameter. Inspect both ends for wear or damage before use. Follow standard shop safety procedures including appropriate eye protection and machine guarding.