M.a. Ford. 79037503 90 Degree 6 Flute Hss Countersink

Product Description

The M.A. FORD. 79037503 is a single-end, 6-flute countersink designed for chamfering, countersinking, and deburring operations in a wide range of materials. Manufactured from high-speed steel with a bright/uncoated finish, it features a 90-degree included angle and a 1/4-inch straight cylindrical shank. The head diameter measures 3/8 inches and overall length is 2 inches. No pilot is included, and the tip nose diameter is 0.090 inches. This tool is suited for machinists, tool-and-die technicians, and fabricators working in production or job-shop environments.

This countersink is built 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. The 90-degree angle makes it appropriate for standard fastener seat preparation and edge chamfering on drilled holes across both manual and CNC machine setups. Its straight cylindrical shank fits standard collets and drill chucks commonly found in machining centers, drill presses, and hand-held power tools.

Key Features

• 90-degree included angle for standard fastener countersink geometry
• 6-flute design provides smooth cutting action and improved chip evacuation
• High-speed steel construction supports use across ferrous and non-ferrous materials
• Bright/uncoated finish suitable for general-purpose machining applications
• 1/4-inch straight cylindrical shank fits standard collets and chucks
• Single-end, no-pilot design for direct chuck mounting without adapters

Compatibility

Designed as a general-purpose countersink compatible with standard 1/4-inch collets and drill chucks on manual drill presses, machining centers, and CNC equipment. Material compatibility includes alloy steel, aluminum, brass, cast iron, high-nickel steel, high-tensile steel, magnesium, magnesium alloy, mild steel, Monel, plastic, and stainless steel.

Installation Notes

Installation is performed by machinists or fabricators using standard machine tooling practices. Secure the shank firmly in a collet or drill chuck rated for the shank diameter before operation. Ensure the workpiece is clamped and the spindle speed is set appropriately for the material being machined. Power down the machine completely before changing or inspecting the tool.