Keo 906-000-392 Combo Drill Countersink Metric Hss

Product Description

The KEO 906-000-392 is a combination drill and countersink tool designed for metric applications in high-speed steel (HSS) construction. It delivers a 120-degree drill point angle with a radius cutting edge style, allowing a single tool to drill a pilot hole and form the countersink in one pass. The body measures 20mm in diameter with an overall length of 80mm. The bright, uncoated finish indicates uncoated HSS - suitable for general-purpose machining on ferrous and non-ferrous metals. This tool is used by machinists and tool-and-die professionals in production and maintenance environments.

This combo drill countersink is suited for metric countersinking operations in machine shops, manufacturing facilities, and fabrication environments. The double-end configuration extends usable tool life by providing two cutting ends per tool. With a 60-degree included angle and a radius cutting edge, it is well suited for creating precise countersinks on metric fastener seats. The 8mm drill point and 21.20mm drill point length make it appropriate for medium-duty countersinking tasks on steel, aluminum, and similar workpiece materials.

Key Features

• 120-degree drill point angle for standard metric countersinking geometry
• Double-end design provides two usable cutting ends per tool
• High-speed steel construction for durability across ferrous and non-ferrous materials
• Radius cutting edge style for smooth countersink seat formation
• Bright uncoated finish - no coating to chip or peel under normal machining conditions
• Right-hand cut direction for use in standard right-hand spindle setups

Compatibility

Designed as an OEM-style replacement or direct-use combo drill countersink for metric countersinking applications in standard drill press, CNC, or manual lathe setups.

Installation Notes

This tool is installed and operated by machinists using standard drill chucks or collet holders rated for the 20mm body diameter. Ensure the workpiece is securely fixtured before engaging the tool. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain surface finish quality. Follow shop safety protocols and machine manufacturer guidelines when setting spindle speed for the material and diameter being cut.