Keo 919-000-947 Countersink Set 5 Pc Tialn Solid Carbide

Product Description

The KEO 919-000-947 is a 5-piece solid carbide countersink set designed for chamfering, countersinking, and deburring applications in metal fabrication and machining environments. Each tool in the set features a single-flute design and a TiAlN (titanium aluminum nitride) coating that extends tool life in high-heat cutting conditions. Head diameters range from 0.25 inches to 0.75 inches, and the included angle is 82 degrees on every piece, making this set suited for standard fastener prep work. Shank diameters run from 0.25 inches to 0.375 inches, and overall lengths range from 2.0 inches to 2.75 inches. The set ships in a plastic storage case. Machinists, tool-and-die workers, and fabricators are the primary users.

This countersink set is used in machine shops, manufacturing facilities, and production environments where precise chamfer angles and clean hole edges are required. The 82-degree included angle matches standard flat-head fastener geometry, making these tools appropriate for screw-seat prep in metal workpieces. The single-flute configuration suits harder materials where chip clearance and edge geometry are critical. The TiAlN finish supports dry cutting and elevated cutting speeds compared to uncoated carbide tools. The plastic storage case keeps all five pieces organized and protected between uses.

Key Features

• 5-piece set covering head diameters from 0.25 inches to 0.75 inches
• Solid carbide construction for rigidity and wear resistance in hard materials
• TiAlN coating for extended tool life and performance in high-temperature cutting
• 82-degree included angle on all pieces for standard flat-head fastener countersinking
• Single-flute design promotes clean chip evacuation in harder workpiece materials
• Shank diameters from 0.25 inches to 0.375 inches fit common drill chuck and collet sizes
• Includes plastic storage case for organized, protected storage

Compatibility

Designed as an OEM-style set of single-flute solid carbide countersinks suitable for use in standard drill presses, CNC machining centers, and hand-held drilling equipment accepting shank diameters from 0.25 inches to 0.375 inches.

Installation Notes

Installation and use of these countersinks should be performed by qualified machinists or fabricators familiar with speeds, feeds, and clamping requirements for carbide tooling. Secure the workpiece firmly before cutting to prevent movement that can chip carbide cutting edges. Inspect each tool for edge chipping or coating damage before use. Follow machine manufacturer guidelines for spindle speed and feed rate when working with solid carbide tooling.