Cleveland C46125 Countersink 3/4 in 82 Degree 1 Flute Hss

Product Description

The CLEVELAND C46125 is a single-flute high speed steel countersink designed for creating conical recesses in workpieces prior to fastener seating. With a 3/4 inch head diameter and an 82-degree included angle, it is sized to match standard flat-head fastener geometries used across general metalworking applications. The 1/2 inch straight-cylindrical shank fits standard drill chucks and collet holders. An oxide finish provides a measure of surface protection during cutting. Right-hand cutting direction suits conventional drill press and hand-drill setups. Machinists, tool and die workers, and metal fabricators are the primary users of this tool.

The C46125 is suited for countersinking operations in carbon steel and cast iron workpieces. It is a single-end tool with no pilot, making it appropriate for applications where the pilot hole is pre-drilled to size before countersinking. Typical use scenarios include preparing holes for flat-head machine screws and bolts in fabrication shops, maintenance environments, and production machining settings. The single-flute geometry reduces chatter and produces a clean, consistent seat in ferrous materials.

Key Features

• 3/4 inch head diameter with 82-degree included angle matches standard flat-head fastener specifications
• Single-flute design minimizes chatter and improves surface finish in the countersink seat
• High speed steel construction provides durability in ferrous cutting applications
• Oxide finish offers basic surface protection and reduces galling during use
• 1/2 inch straight-cylindrical shank is compatible with standard drill chucks and collet systems
• Right-hand cutting direction for use with conventional rotary drilling equipment

Compatibility

Rated for use in carbon steel and cast iron workpiece materials. Designed as an OEM-style countersink for general metalworking and machining operations requiring an 82-degree countersink profile.

Installation Notes

Install the C46125 into a drill press, milling machine, or hand drill with a properly sized chuck or collet before beginning work. Always secure the workpiece and power down the machine before changing tooling. Pre-drill a pilot hole to the correct diameter before countersinking to ensure concentricity and reduce tool loading. Use cutting fluid appropriate for ferrous materials to extend tool life and improve finish quality.