Keo 919-001-058 Countersink 3/16 in 100 Deg 6 Flute Carbide

Product Description

The KEO 919-001-058 is a solid carbide single-end countersink designed for chamfering, countersinking, and deburring operations in precision machining environments. It features a 3/16 inch head diameter, a 100-degree included angle, and 6 flutes for smooth, consistent cutting action. With a 3/16 inch shank diameter and an overall length of 2 inches (51 mm), this tool fits standard toolholders used in CNC and manual machining setups. Solid carbide construction delivers the hardness and wear resistance needed for demanding materials and tight tolerances. Machinists and tool-and-die professionals rely on this style of countersink for clean, accurate seat preparation.

This countersink is suited for use on metal, plastics, and composite materials where chamfering and deburring are required. The 100-degree included angle is commonly specified for aerospace and general-purpose fastener hole preparation. Its compact 3/16 inch diameter makes it well matched to small-diameter hole work where control and precision are critical. The single-end design allows for straightforward toolholder mounting in both CNC machining centers and manual drill press applications.

Key Features

• Solid carbide construction for high wear resistance and long tool life
• 100-degree included angle suited for standard and aerospace fastener seat preparation
• 6-flute design for smooth cutting and reduced chatter
• 3/16 inch head diameter and 3/16 inch shank diameter for compact, precise work
• 2 inch overall length compatible with standard toolholders
• Single-end design for easy mounting and replacement

Compatibility

Designed as a standard single-end countersink for use with toolholders accepting a 3/16 inch shank diameter in CNC and manual machining equipment.

Installation Notes

Installation and use should be performed by qualified machinists familiar with cutting tool safety practices. Ensure the toolholder and spindle are fully stopped and locked out before mounting or removing the countersink. Secure the shank firmly in the toolholder to the manufacturer-specified clamping torque for that holder. Verify proper coolant or lubrication application per the workpiece material requirements before beginning a cut.