Cleveland C46189 Countersink 1-1/2 in 60 Deg 3 Flute Hss

Product Description

The CLEVELAND C46189 is a single-end, straight-shank countersink designed for precision chamfering and countersinking operations in metal fabrication and machining environments. Built from high speed steel with an oxide coating, it features a 1.5-inch head diameter, a 60-degree included angle, and 3 right-hand flutes for smooth, consistent material removal. The 3/4-inch straight-cylindrical shank seats securely in standard drill press chucks and milling machine collets. Machinists and tool-and-die professionals reach for this tool when clean, repeatable countersinks are required on production or maintenance work.

This countersink is suited for use on carbon steel and cast iron workpieces, covering a wide range of industrial and maintenance machining applications. It performs well in both manual drill press setups and CNC machining centers where a straight-shank toolholder is used. The 60-degree included angle is a common standard for machine screws and fastener seating, making this an everyday production tool in job shops, maintenance facilities, and manufacturing environments.

Key Features

• 1.5-inch head diameter for countersinking larger fastener clearance holes
• 60-degree included angle matches standard machine screw head geometry
• 3 right-hand flutes for reduced chatter and smooth finish
• High speed steel construction for durability in carbon steel and cast iron
• Oxide coating provides corrosion resistance and mild lubricity
• Straight-cylindrical 3/4-inch shank for broad chuck and collet compatibility
• Single-end design with no pilot included

Compatibility

Designed for countersinking operations in carbon steel and cast iron. Compatible with drill press chucks and milling machine collets or toolholders accepting a 3/4-inch straight-cylindrical shank.

Installation Notes

This tool is installed by machinists and toolroom technicians in standard drill press or milling machine setups. Secure the shank fully in the chuck or collet before operation and verify runout before cutting. Power down and lock out the machine spindle before changing or adjusting any tooling. Use appropriate cutting fluid for the workpiece material to extend tool life and improve finish quality.