M.a. Ford. 79018703 Countersink 90 Degree 6 Flute Hss

Product Description

The M.A. FORD. 79018703 is a single-end, 6-flute countersink designed for chamfering, countersinking, and deburring operations in metalworking and fabrication environments. Built from high-speed steel with a bright, uncoated finish, it features a 90-degree included angle and a 45-degree centerline angle. The straight-cylindrical shank measures 3/16 inches in diameter, and the tool has an overall length of 1.5 inches. The tip nose diameter is 0.040 inches. No pilot is included. This tool is intended for use by machinists, tool and die makers, and maintenance technicians working on drilling and finishing operations.

This countersink is suited for light-duty to medium-duty applications across a wide range of materials. Its 6-flute geometry produces a smooth, clean finish on chamfered holes and deburred edges. Typical use cases include countersinking fastener seats, chamfering drilled holes prior to assembly, and removing burrs from machined parts. Compatible material applications include alloy steel, aluminum, brass, cast iron, high-nickel steel, high-tensile steel, magnesium, magnesium alloy, mild steel, Monel, plastic, and stainless steel.

Key Features

• 90-degree included angle with 45-degree centerline angle for standard countersink profiles
• 6-flute design for smooth cutting action and clean finish on chamfers and deburring operations
• High-speed steel construction provides durability across a broad range of workpiece materials
• Straight-cylindrical shank for compatibility with standard drill chucks and collet holders
• Bright/uncoated finish suitable for general-purpose machining without specialized coating requirements
• Single-end, no-pilot design for versatile positioning in various hole sizes

Compatibility

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. Designed as an OEM-style single-end countersink for use in standard drill press, CNC, or hand-drill applications where a 3/16-inch straight shank is accepted.

Installation Notes

This countersink is installed and operated by machinists or maintenance technicians using a drill press, milling machine, or hand drill with a compatible chuck or collet. Secure the workpiece before operation and confirm spindle speed is appropriate for the workpiece material. Inspect the cutting edges before use and do not operate with damaged or excessively worn flutes. Eye protection and appropriate personal protective equipment should be worn during all cutting operations.