M.a. Ford. 79125002 Countersink 82 Degree 6 Flute Hss

Product Description

The M.A. FORD. 79125002 is a 6-flute, high-speed steel countersink designed for chamfering, countersinking, and deburring operations in metal fabrication and machining environments. It features an 82-degree included angle with a 1.25-inch head diameter and a 0.5-inch straight-cylindrical shank, giving it a stable, secure fit in standard drill chucks and collet holders. The bright, uncoated finish is suited for general-purpose cutting across a wide range of workpiece materials. At 3 inches overall length, this tool balances reach and rigidity for consistent results. It is typically installed and operated by machinists, tool-and-die professionals, and maintenance technicians working with production drilling equipment or manual drill presses.

This countersink is designed for use on a broad range of materials including 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-suited for production and job-shop environments where a reliable, multi-material countersink is needed for consistent 82-degree seat preparation. The right-hand cutting direction is compatible with standard spindle rotation on vertical mills, drill presses, and CNC machining centers.

Key Features

• 82-degree included angle for standard fastener seat preparation and chamfering
• 6-flute geometry for smooth cutting action and reduced chatter
• High-speed steel construction for durability across a wide material range
• 0.5-inch straight-cylindrical shank for compatibility with standard chucks and collet holders
• Bright, uncoated finish suitable for general-purpose and multi-material applications
• Single-end design with no pilot included, allowing use with existing hole locations

Compatibility

Designed for chamfering, countersinking, and deburring applications across alloy steel, aluminum, brass, cast iron, high-nickel steel, high-tensile steel, magnesium, magnesium alloy, mild steel, Monel, plastic, and stainless steel workpieces. Fits standard 0.5-inch drill chucks and collet holders on drill presses, vertical mills, and CNC machining centers.

Installation Notes

Installation and operation should be performed by qualified machinists or maintenance technicians familiar with rotating cutting tools. Secure the shank fully in the chuck or collet before operation, and confirm the spindle is at a complete stop before making tool changes. Always wear appropriate eye protection, and follow applicable OSHA and shop-safety standards when operating drill presses or milling equipment. Do not exceed the recommended spindle speeds for the workpiece material being cut.