M.a. Ford 78037506 Countersink 120 Deg 6 Flute 3/8 in

Product Description

The M.A. FORD 78037506 is a solid carbide countersink designed for precision chamfering, countersinking, and deburring across a wide range of materials. It features a 120-degree included angle with 6 flutes and a right-hand cutting direction. The 3/8-inch head diameter pairs with a 1/4-inch straight cylindrical shank and an overall length of 2 inches. The bright/uncoated finish is suited for general-purpose machining where coating is not required. This tool is installed by machinists and tool-and-die professionals working on production and maintenance applications requiring clean, consistent countersink geometry.

This countersink is appropriate for use on alloy steel, mild steel, stainless steel, cast iron, high-tensile steel, high-nickel steel, Monel, aluminum, brass, magnesium, magnesium alloy, and plastic. It is a single-end tool with no pilot included, making it compatible with standard drill press, CNC, and manual milling setups. Its 6-flute geometry reduces chatter and produces a smooth finish, making it well suited for both production runs and precision one-off work in shop environments.

Key Features

• 120-degree included angle for standard countersink and chamfer profiles
• 6-flute design minimizes chatter and improves surface finish quality
• Solid carbide construction provides hardness and wear resistance across tough materials
• 1/4-inch straight cylindrical shank fits standard collets and chuck holders
• Bright/uncoated finish suitable for general-purpose and non-reactive material applications
• No pilot required — operates as a standalone countersink in pre-drilled holes

Compatibility

Designed for use on alloy steel, aluminum, brass, cast iron, high-nickel steel, high-tensile steel, magnesium, magnesium alloy, mild steel, Monel, plastic, and stainless steel. Fits standard 1/4-inch collets and chucks on drill press, manual mill, and CNC machining centers.

Installation Notes

This tool is installed by machinists using standard collet or drill chuck systems rated for the 1/4-inch shank diameter. Ensure the machine spindle is fully stopped and locked out before mounting or removing the tool. Secure the shank fully within the collet or chuck to the recommended engagement depth to prevent runout. Apply appropriate cutting fluid or dry-cut technique based on the workpiece material being machined.