M.a. Ford. 79062504 Countersink 100 Degree 6 Flute Hss

Product Description

The M.A. FORD. 79062504 is a 6-flute, single-end countersink designed for precise chamfering, countersinking, and deburring operations in metal fabrication and machining environments. Built from high-speed steel with a bright, uncoated finish, it features a 100-degree included angle and a 5/8-inch head diameter. The straight-cylindrical 3/8-inch shank fits standard drill press and milling machine chucks. With an overall length of 2.25 inches and a tip diameter of 0.180 inches, this tool delivers clean, consistent entry angles across a wide range of workpiece materials. Machinists, toolmakers, and metalworkers are the primary installers and users of this tool.

This countersink is suited 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 well matched for production shops, maintenance and repair operations, and job-shop environments where a single reliable countersink tool must perform across mixed-material workflows. The right-hand cutting direction and 6-flute geometry reduce chatter and produce smooth, accurate seat angles for fastener installations and edge preparation tasks.

Key Features

• 100-degree included angle for chamfering and fastener seat preparation
• 6-flute design reduces chatter and improves surface finish quality
• High-speed steel construction handles alloy steel, stainless, cast iron, and non-ferrous materials
• Bright, uncoated finish for general-purpose use without coating-specific maintenance requirements
• Straight-cylindrical 3/8-inch shank for compatibility with standard chucks
• No pilot required - single-end, no-pilot design for flexible positioning

Compatibility

Designed as an OEM-style single-end countersink for use in standard drill press, milling machine, and hand-drill chucks accepting a 3/8-inch straight-cylindrical shank. Rated 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 as stated by the manufacturer.

Installation Notes

This tool is installed and operated by machinists and metalworkers using standard drill press, milling, or hand-drill equipment. Secure the shank firmly in a properly sized chuck before operation and confirm spindle speed is appropriate for the workpiece material and tool diameter. Inspect the cutting edges before each use and remove any chips or debris from the flutes. Follow applicable shop safety standards and equipment manufacturer guidelines when operating rotary cutting tools.