Hertel 300-005007 Combo Drill Countersink Size 7 Solid Carbide

Product Description

The HERTEL 300-005007 is a solid carbide combination drill and countersink designed to drill and chamfer in a single pass. Built for right-hand cutting with a plain cutting edge style, it features a 5/8 inch body diameter, a 1/4 inch drill point diameter, and a 1/4 inch drill point length. The 118-degree drill point angle and 60-degree included countersink angle make it well suited for preparing fastener seats in metal and composite materials. At 6 inches overall length, this is a long-length tool. It is installed and used by machinists, tool-and-die technicians, and maintenance trades working on drilling and countersinking operations requiring precision and tool longevity.

This combo drill countersink is intended for countersinking applications in production and maintenance environments. The solid carbide construction handles harder workpiece materials where high-speed steel tools wear prematurely. The double-end style and bright uncoated finish make it a practical choice for shops that require consistent chamfer geometry on drilled holes. It is suited for use in CNC machining centers, drill presses, and manual mills where a single-tool approach to drill-and-countersink operations reduces setup time.

Key Features

• Solid carbide construction for extended tool life in hard and abrasive materials
• Combination drill and countersink performs two operations in one pass
• 118-degree drill point angle with 60-degree included countersink angle
• Double-end design maximizes usable tool life before replacement
• Long-length at 6 inches overall length for extended reach applications
• Bright uncoated finish suitable for use with a wide range of cutting fluids

Compatibility

Designed as a trade size 7 combo drill countersink for standard countersinking applications in metalworking and machining operations requiring a 5/8 inch body diameter tool.

Installation Notes

This tool is installed by machinists and trades professionals in rotating spindle equipment such as drill presses, mills, or CNC machining centers. Ensure the workpiece is securely clamped and the spindle is fully stopped before changing or inspecting the tool. Use appropriate cutting fluid for the workpiece material to prevent heat buildup and premature carbide wear. Inspect the cutting edges before each use, as carbide tools are brittle and can chip if subjected to interrupted cuts or excessive feed pressure.