Cleveland C46206 Countersink 3/8 in 90 Deg 4 Flute Hss

Product Description

The CLEVELAND C46206 is a 4-flute high speed steel countersink designed for clean, accurate countersinking operations in metalworking and fabrication applications. With a 3/8-inch head diameter and a 90-degree included angle, this tool produces a standard machine-screw countersink profile suited for fastener seating and deburring. The 1/4-inch straight cylindrical shank fits standard drill chucks and quick-change holders. An oxide coating helps reduce friction and extend tool life during cutting. Machinists, tool-and-die workers, and maintenance technicians use this type of countersink in both production and repair settings.

This countersink is suited for use on alloy tool steel and cast iron workpieces. The right-hand cutting direction is compatible with conventional drill press, CNC, and hand-held drill setups. The single-end, no-pilot design allows the operator to locate the countersink manually or with a guide, making it adaptable to a range of hole patterns and fastener sizes requiring a 90-degree seat. It is sold individually and is appropriate for both shop floor production work and field maintenance use.

Key Features

• 3/8-inch head diameter with 90-degree included angle for standard fastener countersinking
• 4-flute geometry for smooth cutting action and improved chip evacuation
• High speed steel construction for durability across alloy tool steel and cast iron applications
• Oxide coating reduces friction and extends service life
• 1/4-inch straight cylindrical shank fits standard drill chucks and quick-change systems
• Right-hand cut, single-end, no-pilot design for flexible operator control

Compatibility

Rated for use on alloy tool steel and cast iron. The 1/4-inch straight cylindrical shank is compatible with standard drill chucks and quick-change tool holders used on drill presses, mills, and hand drills.

Installation Notes

Install and remove the C46206 only with the machine fully powered down and the spindle at rest. Secure the shank firmly in the chuck or holder before operating to prevent runout or slippage. Use appropriate cutting fluid or lubrication when working with alloy steels to maintain edge life. Wear appropriate eye protection and follow shop safety protocols when operating rotary cutting tools.