Hertel H-81185060600 Combo Drill Countersink Hss Size 6

Product Description

The HERTEL H-81185060600 is a combination drill and countersink tool sized for a No. 6 fastener, built from high speed steel with a bright polished finish. The tool features a 1/2 inch body diameter, a 7/32 inch drill point diameter, and a 7/32 inch drill point length. The included angle is 60 degrees, and the drill point angle is 118 degrees, making it well suited for producing clean pilot holes and countersink seats in a single pass. At 6 inches overall length, this is a long-length tool. It is used by machinists, maintenance techs, and trade professionals working in metal fabrication, mechanical assembly, and general drilling applications.

This combo drill countersink is designed for countersinking operations where a No. 6 screw seat and pilot hole must be cut simultaneously. The plain cutting edge style and double end type allow for extended tool life through dual-end use. The bright polished finish reduces built-up edge and aids chip flow in ferrous and non-ferrous materials. It is appropriate for bench drill press, milling machine, and hand drill use in shop or field settings.

Key Features

• Combination drill and countersink in a single tool for No. 6 fastener applications
• High speed steel construction for durability in ferrous and non-ferrous materials
• Bright polished finish reduces friction and promotes chip evacuation
• 60-degree included angle with 118-degree drill point for accurate countersink geometry
• Double end design extends usable tool life
• Long-length at 6 inches OAL for deeper reach applications

Compatibility

Designed as an OEM-style replacement or direct-use combo drill countersink for No. 6 trade size fastener applications in standard countersinking operations.

Installation Notes

Install in a drill chuck or collet sized for the 1/2 inch body diameter and verify secure clamping before use. Secure the workpiece firmly before starting the cut to prevent walking or chatter. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain surface finish quality. Always wear appropriate eye protection when operating rotary cutting tools.