Keo 906-000-383 Combo Drill Countersink Metric Hss

Product Description

The KEO 906-000-383 is a metric combo drill countersink machined from high-speed steel with a bright, uncoated finish. It combines a twist drill point with a countersink profile in a single double-end tool, eliminating the need for a tool change between drilling and countersinking operations. The drill point carries a 120-degree included angle with a 1.00 mm drill point diameter and 3.00 mm drill point length. The countersink section features a 60-degree included angle and a radius cutting edge style. Overall length is 31.50 mm with a 3.15 mm body diameter. This tool is suited for machinists, toolroom technicians, and precision fabricators working in metric applications.

This combo drill countersink is designed for countersinking operations in light metals, plastics, and similar materials where metric fastener seating is required. The double-end configuration extends tool life by providing two usable ends before replacement. Right-hand cut geometry is standard, making it compatible with conventional right-hand spindle rotation on drill presses, CNC machining centers, and hand-operated drilling equipment. The bright uncoated finish performs well in general-purpose applications where specialized coatings are not required.

Key Features

• Double-end design provides two usable cutting ends for extended service life
• 120-degree drill point angle with 1.00 mm drill point diameter
• 60-degree included countersink angle with radius cutting edge style
• High-speed steel construction for general-purpose machining durability
• Bright uncoated finish suited for light metals and plastics
• Right-hand cut, compatible with standard right-hand spindle rotation

Compatibility

Designed as an OEM-style metric combo drill countersink for use in standard right-hand rotating drill presses, CNC machining centers, and benchtop drilling equipment requiring a 3.15 mm body diameter tool.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom personnel familiar with rotating cutting tools. Secure the tool firmly in an appropriate collet or chuck rated for the body diameter before operating. Ensure the spindle is fully stopped before changing or inspecting the tool. Do not exceed the recommended feed and speed parameters for the workpiece material being machined.