Hertel 300-001506 Combo Drill Countersink Solid Carbide

Product Description

The HERTEL 300-001506 is a solid carbide combination drill and countersink designed to perform drilling and countersinking in a single pass. Built for precision metalworking applications, this tool features a TiN (titanium nitride) coating that extends tool life and reduces friction at the cutting edge. It carries a trade size of 4 with a 5/16-inch body diameter, a 1/8-inch drill point diameter, and a 118-degree drill point angle. The 60-degree included angle is suited for standard countersink profiles. At 2-1/8 inches overall length and 0.1 pounds, this compact tool fits standard tool holders used in machining and fabrication environments. It is installed and used by machinists, tool-and-die workers, and precision fabricators.

This combo drill countersink is intended for countersinking operations in ferrous and non-ferrous metals where a clean, accurately sized countersink seat is required in a single operation. The right-hand cutting direction and plain cutting edge style make it compatible with standard CNC machining centers, drill presses, and manual milling setups. It is a non-aircraft-style, non-tapered tool with a double end type, suited for general-purpose countersinking in production and maintenance machining environments.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding materials
• TiN coating reduces friction and extends cutting tool life
• Combines drilling and countersinking into a single operation, reducing setup time
• 118-degree drill point angle with 60-degree included angle for standard countersink profiles
• Right-hand cut with plain cutting edge style for use in standard rotating spindle setups
• Double end type maximizes tool life by providing two usable ends

Compatibility

Designed as an OEM-style replacement or direct-use combo drill countersink for standard machining setups requiring a size 4, 5/16-inch body tool with a 1/8-inch drill point and 118-degree point angle.

Installation Notes

This tool is installed by machinists in drill presses, CNC machining centers, or milling machines using a compatible tool holder sized for a 5/16-inch body diameter. Ensure the spindle is fully stopped and the machine is powered down before changing or setting the tool. Verify tool runout and holder seating before beginning a cutting operation. Follow applicable shop safety standards and machine manufacturer guidelines for tooling installation and speeds and feeds selection.