Hertel 300-005002 Combo Drill Countersink Solid Carbide

Product Description

The HERTEL 300-005002 is a solid carbide combo drill countersink designed to drill and countersink in a single pass. Sized at trade size No. 2 with a 3/16-inch body diameter, it features a 118-degree drill point angle and a 60-degree included angle for the countersink portion. The drill point diameter and drill point length are each 5/64 inches, and the tool runs to a 4-inch overall length. The bright polished finish reduces friction and chip buildup during cutting. Right-hand cut geometry suits standard machine spindle direction. This tool is installed by machinists, tool-and-die workers, and fabrication professionals working with metal substrates requiring flush or recessed fastener seating.

The 300-005002 is used in applications where a pre-drilled hole and countersink must be completed in one operation, reducing cycle time and tool changes. Its long-length designation and double-end type make it well suited for production environments and deep-reach applications. The plain cutting edge style and solid carbide construction allow use in harder materials where high-speed steel tooling loses edge life quickly. Typical applications include aerospace-adjacent fabrication, general metalworking, and precision machined-part production.

Key Features

• Solid carbide construction for extended edge life in hard and abrasive materials
• Drill and countersink in a single pass — 118-degree point angle combined with 60-degree included countersink angle
• Bright polished finish reduces cutting friction and aids chip evacuation
• Right-hand cut, plain cutting edge style for standard CNC and manual machine setups
• Long-length tool classification extends reach for deeper workpiece access
• Double-end type increases usable tool life per unit

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide combo drill countersink for standard machine tool holders accepting a 3/16-inch body diameter shank in trade size No. 2 applications.

Installation Notes

This tool is installed by machinists and fabricators in CNC machining centers, drill presses, or manual milling machines. Secure the shank firmly in a compatible collet or chuck before operation and verify spindle direction matches the right-hand cut geometry. Always wear appropriate eye and hand protection when handling or changing carbide cutting tools, as solid carbide is brittle and can chip under impact. Follow shop-specific speeds and feeds guidelines for the workpiece material being cut.