Hertel 300-001003 Combo Drill Countersink 1/8 in Solid Carbide

Product Description

The HERTEL 300-001003 is a solid carbide combo drill countersink designed to drill and countersink in a single operation. Trade size 1, it features a 1/8 inch body diameter and a 3/64 inch drill point diameter with a 3/64 inch point length. The 60-degree included angle and right-hand cutting direction make it suited for countersinking applications in metal fabrication, machining, and precision assembly work. The bright, uncoated finish maintains tight tolerances and allows close inspection of the cutting edges. At 1-1/4 inches overall length, this compact tool fits standard drill chucks and collet holders used in machine shop and production environments.

This combo drill countersink is intended for use in machining, tool-and-die, and production shop applications where a single-pass drill-and-countersink operation is required. The plain cutting edge style and double end type allow for consistent, repeatable countersink geometry. Machinists, tool room technicians, and CNC operators working with ferrous and non-ferrous materials will find this tool appropriate for controlled-depth countersinking in light to medium duty setups.

Key Features

• Solid carbide construction provides hardness and wear resistance for extended tool life
• 60-degree included angle delivers standard countersink geometry for flat-head fastener seating
• Double end design offers two usable cutting ends per tool
• Bright uncoated finish allows visual inspection of cutting edge condition
• Right-hand cut, plain cutting edge style for conventional machine spindle use
• Compact 1-1/4 inch overall length fits tight setups and short-reach applications

Compatibility

Designed as a standard replacement or production combo drill countersink for trade size 1 applications requiring a 1/8 inch body diameter and 60-degree countersink angle.

Installation Notes

Install in a compatible drill chuck or collet holder rated for the 1/8 inch shank diameter before use. Ensure the machine spindle is fully stopped and the tool is secured before beginning any setup or tool change. Use appropriate cutting speeds for carbide tooling in the workpiece material to avoid chipping the cutting edge. Carbide tooling is brittle and should not be used in setups with excessive runout or vibration.