Cleveland C46432 Counterbore 17/32 in 3 Flute Hss

Product Description

The CLEVELAND C46432 is a 3-flute interchangeable pilot counterbore designed for precision counter-boring operations in metalworking and machining applications. Built from high-speed steel with a bright, uncoated finish, it delivers consistent performance across a range of ferrous and non-ferrous materials. The tool features a 17/32-inch counterbore diameter, a 1/2-inch straight shank, and a 4-5/16-inch overall length. Right-hand cutting geometry and a polished finish reduce chip buildup and support smooth material removal. This counterbore is installed and operated by machinists and tool-and-die professionals using standard drill presses, milling machines, or CNC equipment.

This counterbore is suited for use in machine shops, maintenance facilities, and production environments where precise bolt-seat or fastener-clearance cuts are required. Compatible pilot shank diameter is 3/16 inch. Approved material applications include low-carbon steel, medium-carbon steel, alloy tool steel, cast iron, and aluminum. The interchangeable pilot design allows the tool body to be reused across multiple pilot sizes, reducing tooling cost in multi-size production setups.

Key Features

• 17/32-inch counterbore diameter with 1/2-inch straight shank for secure chuck engagement
• 3-flute geometry for balanced cutting and improved chip evacuation
• High-speed steel construction provides durability across steel, cast iron, and aluminum
• Right-hand cutting direction for standard spindle rotation compatibility
• Interchangeable pilot accepts 3/16-inch pilot shank diameter
• Bright uncoated finish with polished surface for reduced friction

Compatibility

Designed for use with 3/16-inch interchangeable pilots. Suitable for counterboring operations in alloy tool steel, aluminum, cast iron, low-carbon steel, and medium-carbon steel workpieces.

Installation Notes

Installation and operation should be performed by qualified machinists familiar with rotating cutting tool safety. Ensure the machine spindle is fully stopped and the tool is securely seated in the chuck or collet before starting. Verify pilot shank diameter matches the counterbore pilot before use. Follow applicable machine shop safety standards and manufacturer speed-and-feed guidelines for the workpiece material.