Hertel 300-005005 Combo Drill Countersink Solid Carbide

Product Description

The HERTEL 300-005005 is a solid carbide combination drill and countersink designed to drill and chamfer a hole in a single pass. Carrying a Trade Size of No. 5, the tool features a 7/16-inch body diameter, a 3/16-inch drill point diameter, and a 3/16-inch drill point length. The 118-degree drill point angle and 60-degree included countersink angle make this tool suited for creating accurate, burr-free countersunk holes in metal and composite materials. The bright polished finish reduces friction and aids chip evacuation. At 6 inches overall length, it qualifies as a long-length tool, giving reach into deeper fixtures or workholding setups.

This combo drill countersink is intended for use in machine shop, fabrication, and production environments where countersinking is performed on metal workpieces. The right-hand cutting direction and plain cutting edge style are compatible with standard vertical machining centers, drill presses, and CNC setups. The double end type provides two usable ends, extending tool life in high-volume applications. It is not an aircraft-style tool and is not tapered, making it a straightforward choice for general countersinking operations in ferrous and non-ferrous metals.

Key Features

• Solid carbide construction for rigidity and wear resistance in metal cutting applications
• 118-degree drill point angle with a 60-degree included countersink angle in a single tool
• Bright polished finish reduces friction and improves chip flow
• Double end design extends usable tool life
• Long-length tool at 6 inches OAL for added reach in deep workholding setups
• Right-hand cut, plain cutting edge — compatible with standard CNC and manual spindles

Compatibility

Designed as a standard combination drill and countersink for use in drill presses, machining centers, and CNC equipment accepting toolholders sized for a 7/16-inch body diameter. No specific OEM equipment compatibility was provided in the product data.

Installation Notes

Secure the tool in an appropriate collet or drill chuck rated for the 7/16-inch body diameter before use. Ensure the spindle is fully stopped and the machine is de-energized before changing or inspecting the tool. Use appropriate cutting fluid or coolant for the workpiece material to maximize tool life and hole quality. Inspect both cutting ends for chipping before each use, as carbide is brittle and can fracture if used while damaged.