M.a. Ford 79T050004 Countersink 100 Deg 6 Flute Hss Tin

Product Description

The M.A. FORD 79T050004 is a single-end, 6-flute countersink designed for right-hand cutting in a wide range of materials. Built from high-speed steel with a titanium nitride (TiN) finish, it delivers consistent cutting performance and extended tool life compared to uncoated alternatives. The included angle is 100 degrees, the maximum cutting diameter is 0.5 inches, and the straight-cylindrical shank measures 0.375 inches in diameter. Overall length is 2 inches. This tool is installed and used by machinists, toolroom technicians, and maintenance professionals working on manual mills, drill presses, and CNC machines.

The 79T050004 countersink is suited for countersinking operations across a broad material range including mild steel, alloy steel, stainless steel, cast iron, high-tensile steel, high-nickel steel, Monel, aluminum, brass, magnesium, magnesium alloy, and plastic. Its 6-flute design reduces chatter and produces a cleaner finish than lower-flute-count alternatives, making it a practical choice for production runs and precision fitting work where screw-head seating consistency matters.

Key Features

• 100-degree included angle for standard countersink profiles
• 6-flute geometry minimizes chatter and improves surface finish
• TiN coating extends tool life and reduces friction during cutting
• High-speed steel construction handles a wide range of workpiece materials
• Straight-cylindrical shank fits standard drill chucks and collet holders
• Single-end design with right-hand cutting direction

Compatibility

Designed for use in standard drill chucks and collet-style toolholders accepting a 0.375-inch straight-cylindrical shank. Compatible workpiece materials include alloy steel, aluminum, brass, cast iron, high-nickel steel, high-tensile steel, magnesium, magnesium alloy, mild steel, Monel, plastic, and stainless steel.

Installation Notes

Machinists and toolroom technicians should secure the shank fully in the chuck or collet before operation and verify runout before cutting. Power down and de-energize the machine spindle before mounting or removing the tool. Use appropriate cutting fluid or lubricant for the specific workpiece material to maximize tool life. Follow shop-floor safety protocols and applicable OSHA machine guarding requirements when operating rotating cutting tools.