M.a. Ford. 79025004 Countersink 100 Degree 6 Flute Hss

Product Description

The M.A. FORD. 79025004 is a single-end, straight-shank countersink designed for chamfering, countersinking, and deburring operations across a wide range of materials. It features a 100-degree included angle, 6 flutes for smooth cutting action, and is manufactured from high-speed steel with a bright uncoated finish. The shank diameter measures 0.25 inches and the overall length is 2 inches. This countersink is suited for right-hand rotation and is used in drill press, mill, or hand-drill applications by machinists, tool and die makers, and general fabrication technicians.

This countersink is appropriate for use in both production and maintenance environments where consistent chamfer angles and clean edge prep are required. It is compatible with a broad range of workpiece materials including mild steel, alloy steel, stainless steel, cast iron, high-tensile steel, high-nickel steel, Monel, aluminum, brass, magnesium, magnesium alloy, and plastic. The 0.25-inch straight cylindrical shank fits standard drill chucks and collet holders commonly found in shop environments.

Key Features

• 100-degree included angle suitable for standard countersink and chamfer profiles
• 6-flute design reduces chatter and produces a cleaner finish compared to fewer-flute versions
• High-speed steel construction provides durability across ferrous and non-ferrous materials
• Bright uncoated finish - no coating to chip or flake during use
• 0.25-inch straight cylindrical shank fits standard chucks and collets
• Single-end design with no pilot - pilot-free for flexible use across hole sizes

Compatibility

Designed for use in drill press, CNC, or manual milling setups accepting a 0.25-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

Install in a drill press, milling machine, or hand drill using a chuck or collet rated for a 0.25-inch shank. Secure the workpiece before operation and ensure the spindle speed is appropriate for the workpiece material and tool diameter. Wear appropriate PPE including eye protection. Inspect the cutting edges before each use and remove from service if chipping or wear is observed.