Keo 906-000-386 Combo Drill Countersink Metric Hss

Product Description

The KEO 906-000-386 is a metric combo drill countersink manufactured from high-speed steel with a bright, uncoated finish. This double-end tool combines a twist drill point with a countersink profile in a single body, allowing a technician or machinist to drill a pilot hole and countersink in one operation. The drill point angle is 120 degrees with a 2.00 mm drill point diameter, and the countersink uses a radius cutting edge style with a 60-degree included angle. The overall length is 40.00 mm and the body diameter measures 5.00 mm. Right-hand cutting direction is standard for conventional machine spindle rotation.

This combo drill countersink is suited for metalworking applications where a countersunk seat is required for flat-head fasteners or deburring operations. The double-end configuration extends tool life by providing two usable ends before replacement. It is appropriate for use in drill presses, CNC machining centers, lathes, and manual milling machines in job shop, maintenance, or production environments. The tool is not tapered, not aircraft style, and is not designed for long-reach applications.

Key Features

• Double-end design provides two usable cutting ends per tool
• 120-degree drill point angle with 2.00 mm drill point diameter
• 60-degree included angle with radius cutting edge style for clean countersunk seats
• High-speed steel construction for general-purpose metalworking durability
• Bright uncoated finish suitable for standard cutting fluids and dry cutting
• Right-hand cut compatible with standard machine spindle rotation

Compatibility

Designed as an OEM-style metric combo drill countersink for use in standard drill presses, CNC machining centers, lathes, and milling machines that accept the appropriate shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Secure the tool firmly in a compatible collet or drill chuck and verify runout before use. Power down the machine and confirm the spindle has come to a complete stop before changing or adjusting the tool. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain surface finish quality.