Hertel 300-001503 Combo Drill Countersink 1/8 in Carbide

Product Description

The HERTEL 300-001503 is a solid carbide combo drill countersink designed to drill and countersink in a single pass. The tool features a titanium nitride (TiN) coating for improved surface hardness and extended tool life. With a 1/8 inch body diameter, a 3/64 inch drill point diameter, and a 60-degree included angle, it produces clean countersunk holes suited for flush fastener installations. Overall length is 1-1/2 inches. The right-hand cutting direction and plain cutting edge style make it compatible with standard drill press and CNC setups. Machinists and tool-and-die professionals are the primary installers.

This combo drill countersink is intended for countersinking applications in light-duty machining environments. The double end type and compact 1-1/2 inch overall length make it well suited for precision work on small-diameter holes. The 118-degree drill point angle is a standard geometry appropriate for steel, aluminum, and similar materials. It is sold individually and is a practical choice for shops requiring a small-diameter, single-operation countersinking solution without a separate pilot drill step.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding materials
• Titanium nitride (TiN) coating extends tool life and reduces friction
• Combo drill and countersink geometry completes two operations in one pass
• 60-degree included angle for standard flush-fastener countersink profiles
• 118-degree drill point angle suits a wide range of common workpiece materials
• Right-hand cut, plain cutting edge, double end configuration

Compatibility

Designed as an OEM-style replacement or direct substitute for trade size 1 combo drill countersinks with a 1/8 inch body diameter and standard 60-degree included angle geometry.

Installation Notes

Installation is performed by qualified machinists using a drill press, milling machine, or CNC machining center. Secure the workpiece firmly before operation and confirm spindle speed is appropriate for the workpiece material and tool diameter. Power down and de-energize the machine completely before changing or inspecting the tool. Do not use this tool for interrupted cuts or applications outside its rated geometry without consulting engineering specifications.