Hertel 300-005501 Combo Drill Countersink 1/8 in Solid Carbide

Product Description

The HERTEL 300-005501 is a solid carbide combination drill and countersink designed to drill and chamfer in a single pass. The tool features a titanium nitride (TiN) coating for improved wear resistance and longer tool life. With a 1/8-inch body diameter, a 3/64-inch drill point, a 118-degree drill point angle, and a 60-degree included countersink angle, it handles precision spotting and countersinking on a wide range of materials. The 4-inch overall length suits standard machine setups, and the right-hand cutting direction is compatible with conventional CNC and manual drill press operation.

This combo drill countersink is suited for metalworking, fabrication, and machining applications where a clean countersunk seat is required before fastener installation. The double end type and plain cutting edge style make it a practical choice for production shops, toolrooms, and maintenance environments. It is installed and operated by machinists, tool-and-die makers, and skilled fabricators working with drill presses, CNC machining centers, or lathes.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding materials
• Titanium nitride (TiN) coating extends cutting life and reduces friction
• 118-degree drill point angle with 60-degree included countersink angle in one tool
• Right-hand cutting direction for standard spindle rotation
• 4-inch overall length accommodates standard tool holders and collets
• Double end type maximizes tool utility and value per sharpening cycle

Compatibility

Designed as an OEM-style replacement or direct-use combo drill countersink for standard drill press, CNC machining center, and lathe setups accepting a 1/8-inch shank tool.

Installation Notes

Installation and use should be performed by a qualified machinist or trained operator. Secure the tool firmly in an appropriate collet or drill chuck rated for the shank diameter before operation. Ensure the machine spindle is fully stopped and the power source is locked out before changing or inspecting the tool. Follow applicable shop safety standards and machine manufacturer guidelines for speeds and feeds when running solid carbide tooling.