Hertel 300-007001 Combo Drill Countersink 1/8 in Solid Carbide

Product Description

The HERTEL 300-007001 is a solid carbide combo drill countersink designed to drill and countersink in a single pass. With a 1/8 inch body diameter and a 90-degree included angle, it produces clean, accurately sized countersinks without tool changes. The 118-degree drill point and plain cutting edge style deliver consistent entry into a wide range of materials. Overall length is 4 inches, and the long-length configuration provides extended reach for recessed or deep-access work. The bright polished finish reduces friction and aids chip evacuation. This tool is suited for machinists, tool-and-die technicians, and fabricators working in production or maintenance environments.

This combo drill countersink is built for countersinking applications in metal fabrication, aerospace component work, and general machining. The right-hand cut, double-end geometry makes it a practical choice for shops running CNC machining centers, drill presses, or manual mills where combining two operations into one pass reduces cycle time. The 3/64 inch drill point diameter and 3/64 inch point length support accurate pilot entry before the countersink geometry engages.

Key Features

• Solid carbide construction for wear resistance in ferrous and non-ferrous materials
• 90-degree included angle for standard countersink seat geometry
• 118-degree drill point for clean entry and accurate piloting
• Double-end design extends usable tool life
• Long-length at 4 inches overall for extended reach applications
• Bright polished finish promotes chip flow and reduces built-up edge

Compatibility

Designed as a standard combo drill countersink for use in drill presses, CNC machining centers, and manual milling machines accepting 1/8 inch shank tooling.

Installation Notes

Installation and use of this tool should be performed by qualified machinists familiar with cutting tool setup and speeds and feeds for solid carbide tooling. Secure the shank firmly in a collet or drill chuck rated for the tool diameter before operation. Ensure the spindle is fully stopped before measuring, adjusting, or removing the tool. Follow machine manufacturer guidelines and applicable shop safety codes when setting depth stops or adjusting feed rates for countersinking operations.