M.a. Ford. 61037503 Countersink 90 Degree 3/8 Inch Hss

Product Description

The M.A. FORD. 61037503 is a single-flute high-speed steel countersink designed for chamfering, countersinking, and deburring operations in metalworking and fabrication environments. It features a 90-degree included angle with a 45-degree centerline angle, a 3/8-inch head diameter, and a 1/4-inch straight cylindrical shank. Overall length is 2 inches. The bright uncoated finish makes it straightforward to inspect for wear. This tool is installed and used by machinists, tool and die workers, and maintenance technicians working on production or repair applications.

This countersink is suited for use on a wide range of materials including alloy steel, aluminum, brass, cast iron, mild steel, stainless steel, high-nickel steel, high-tensile steel, Monel, magnesium, magnesium alloy, and plastic. It works in manual drill press setups as well as CNC and lathe applications where a consistent 90-degree countersink profile is required. The single-flute design is typical for applications where chatter control and smooth cutting action are priorities.

Key Features

• 90-degree included angle for standard countersink and chamfer profiles
• Single flute construction reduces chatter and promotes clean entry
• High-speed steel construction supports use across a broad range of workpiece materials
• 1/4-inch straight cylindrical shank fits standard drill chucks and collets
• Bright uncoated finish allows easy visual inspection of cutting edge condition
• No pilot included — suitable for freehand and fixture-guided applications

Compatibility

Designed for use in drill presses, lathes, and CNC machines accepting a 1/4-inch straight cylindrical shank. Compatible with alloy steel, aluminum, brass, cast iron, high-nickel steel, high-tensile steel, magnesium, magnesium alloy, mild steel, Monel, plastic, and stainless steel workpieces.

Installation Notes

This tool is installed by machinists or maintenance technicians in a standard drill chuck or collet accepting a 1/4-inch shank. Ensure the machine spindle is fully stopped and locked out before securing or removing the tool. Use appropriate cutting fluid for the workpiece material, particularly when working with stainless steel or high-nickel alloys. Verify runout after chucking to maintain countersink concentricity.