Cleveland C46180 Countersink 1 in 60 Deg 3 Flute Hss

Product Description

The CLEVELAND C46180 is a single-end, straight-shank countersink designed for creating clean, accurate countersunk holes in carbon steel and cast iron. Machined from high speed steel with an oxide finish for surface protection, this tool features a 1-inch head diameter and a 60-degree included angle, producing the precise seat geometry required for flat-head fasteners. The 0.5-inch straight cylindrical shank fits standard drill chucks and collet holders. Three flutes provide smooth chip evacuation and consistent cutting action. Right-hand cutting direction is standard for conventional CNC and manual drill press setups. Machinists, toolroom technicians, and fabricators use this countersink in production and maintenance machining applications.

This countersink is suited for countersinking operations on carbon steel and cast iron workpieces in both shop and production environments. The 60-degree included angle matches the seating geometry of many metric and standard flat-head machine screws. The 0.5-inch shank diameter is compatible with common milling machine collets, drill press chucks, and CNC tool holders. It functions as a single-end tool with no pilot, so hole placement relies on the operator or workholding setup for alignment.

Key Features

• 1-inch head diameter with 60-degree included angle for precise flat-head fastener seating
• High speed steel construction for durability in carbon steel and cast iron cutting
• Oxide finish provides surface protection and reduces friction during cutting
• Three flutes deliver smooth chip evacuation and consistent surface finish
• 0.5-inch straight cylindrical shank fits standard chucks and collet holders
• Right-hand cut, single-end design compatible with conventional drill press and CNC spindle rotation

Compatibility

Designed for countersinking operations in carbon steel and cast iron. Fits any tool holder or drill chuck accepting a 0.5-inch straight cylindrical shank. No pilot is included; this tool relies on operator alignment or workholding fixtures.

Installation Notes

Machinists and toolroom technicians should ensure the machine spindle is fully stopped and the tool holder is de-energized before installing or removing this countersink. Secure the 0.5-inch shank fully in the collet or chuck to the recommended grip depth before beginning operation. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life and maintain surface finish quality. Wear appropriate PPE including eye protection when operating any rotary cutting tool.