Keo 906-000-229 Combo Drill Countersink Size 14 Hss

Product Description

The KEO 906-000-229 is a combination drill and countersink designed for metalworking applications where a pilot hole and countersink must be produced in a single operation. Built from high-speed steel with a bright, uncoated finish, this tool features a 5/16 inch body diameter, a 7/64 inch drill point diameter, and a 118-degree drill point angle. The bell-style cutting edge produces a 60-degree included angle countersink, making it well suited for seating flat-head fasteners flush with or below a workpiece surface. Installed by machinists and metal fabricators, it fits standard drill press chucks and CNC lathes without adapters.

This combination tool is used in general metalworking, sheet metal fabrication, and light machining environments. The double-end configuration extends tool life by providing two usable cutting ends. The right-hand cut geometry is compatible with conventional clockwise-rotating spindles found on drill presses, milling machines, and CNC machining centers. It is appropriate for ferrous and non-ferrous metals where a clean, burr-free countersink is required before fastener installation.

Key Features

• High-speed steel construction for durability across ferrous and non-ferrous materials
• Bell-style cutting edge with 60-degree included angle for standard flat-head fastener seating
• 118-degree drill point angle for clean entry on metal workpieces
• Double-end design provides two cutting ends to extend tool service life
• Bright, uncoated finish suitable for general-purpose machining
• Right-hand cut geometry compatible with standard clockwise-rotating spindles

Compatibility

Designed as an OEM-style replacement or standard supply item for use in drill press chucks, milling machine spindles, and CNC lathe tooling setups requiring a trade size 14 combination drill and countersink.

Installation Notes

This tool is installed by machinists and metal fabricators in rotating spindle equipment. Ensure the spindle is fully stopped and the machine is powered down before changing or inspecting the tool. Secure the shank firmly in the chuck or collet before operation. Follow applicable OSHA machining safety standards and the equipment manufacturer guidelines for spindle speed and feed rate selection.