Cleveland C46108 Countersink 3/8 in 82 Degree 1 Flute Hss

Product Description

The CLEVELAND C46108 is a single-flute, high-speed steel countersink designed for creating clean, chamfered seat angles in metal workpieces. With a 3/8 inch head diameter, an 82-degree included angle, and a 1/4 inch straight cylindrical shank, this tool mounts directly in standard drill chucks and collet holders without adapters. It cuts in the right-hand direction and carries an oxide coating to reduce friction and extend tool life. Machinists, tool-and-die workers, and maintenance trades use it for deburring drilled holes and preparing fastener seats in carbon steel and cast iron.

This countersink is suited for production and maintenance applications where flat-head fastener seats at the standard 82-degree angle are required. The single-flute geometry reduces chatter on manual drill presses and hand-held drilling equipment, making it practical for both bench work and in-place repairs. Compatible material applications include carbon steel and cast iron. The 1/4 inch shank size fits a wide range of drill chucks used in shop and field settings.

Key Features

• 3/8 inch head diameter with 82-degree included angle for standard flat-head fastener seats
• Single-flute design minimizes chatter on manual and handheld equipment
• High-speed steel construction provides durability in carbon steel and cast iron applications
• Oxide coating reduces friction and helps extend cutting edge life
• 1/4 inch straight cylindrical shank fits standard drill chucks and collet holders
• Right-hand cut, no pilot included, single-end configuration

Compatibility

Designed for countersinking operations in carbon steel and cast iron. Fits any drill chuck or collet holder accepting a 1/4 inch straight cylindrical shank.

Installation Notes

This tool is installed and operated by machinists, maintenance mechanics, or trades personnel using a drill press, CNC machine, or handheld drill with an appropriate chuck. Always secure the workpiece before cutting and ensure the shank is fully seated and tightened in the chuck. Power down and de-energize any machinery before changing tooling. Use appropriate cutting fluid or lubrication for extended cuts in ferrous materials to preserve cutting edge life.