Keo 906-000-006 Combo Drill Countersink 5/0 1/8 in Hss

Product Description

The KEO 906-000-006 is a combination drill and countersink designed for simultaneous drilling and countersinking in a single operation. Built from high-speed steel with a titanium nitride coating, this aircraft-style tool delivers consistent performance across metal fabrication and assembly work. The 1/8 inch body diameter and 11/32 inch drill point diameter accommodate size 5/0 applications, while the 118-degree drill point angle and 60-degree included angle make it well suited for standard countersink profiles. At 1-1/4 inches overall length and weighing just 0.04 pounds, it is compact and lightweight for use in drill presses, CNC machines, and handheld drilling equipment.

This combo drill countersink is used in metalworking, aerospace-style fabrication, and general machining applications where a clean countersunk seat is required in a single pass. The double-end design extends tool life by providing two usable cutting ends. Right-hand cutting direction suits standard drill press and CNC spindle rotation. The plain cutting edge style and non-tapered geometry make this a straightforward drop-in for production runs requiring consistent countersink geometry on fastener holes.

Key Features

• High-speed steel construction with titanium nitride coating for extended wear resistance
• 118-degree drill point angle for reliable center-starting on metal surfaces
• 60-degree included angle for standard countersink profiles
• Double-end design provides two cutting ends to maximize tool service life
• Aircraft-style geometry suitable for precision fastener hole preparation
• Right-hand cut compatible with standard spindle rotation on drill presses and CNC equipment

Compatibility

Designed as an OEM-style replacement or direct-fit combo drill countersink for size 5/0 applications requiring a 1/8 inch body diameter and 60-degree countersink angle in standard drill press, CNC, or handheld drilling setups.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Secure the shank fully in a compatible drill chuck or collet before operation and confirm spindle rotation is set to right-hand before engaging the workpiece. Always power down and de-energize the machine before changing tooling. Use appropriate cutting fluid for the workpiece material to prolong tool life and maintain finish quality.