M.a. Ford 79000003 Countersink Set 7 Pc 6 Flute Hss

Product Description

The M.A. FORD 79000003 is a 7-piece countersink set designed for right-hand cutting in a wide range of metalworking and fabrication applications. Each countersink features 6 flutes and a 90-degree included angle, producing clean, accurate chamfers for fastener seating. Head diameters range from 1/4 inch to 1 inch, giving technicians and machinists a full complement of sizes in a single kit. All tools are manufactured from high speed steel with a bright polished finish and straight shanks. The set stores in a plastic case for organized tool management on the shop floor or in the field.

This set is suited for countersinking operations on a broad spectrum of materials including mild steel, alloy steel, stainless steel, cast iron, high tensile steel, high nickel steel, Monel, aluminum, aluminum alloy, brass, magnesium, magnesium alloy, and plastics. It is a practical choice for tool rooms, maintenance shops, and production environments where multiple countersink sizes are needed across varying workpiece materials. The single-end design and straight shank make the tools compatible with standard drill presses, milling machines, and hand drills with appropriate chucks.

Key Features

• 7-piece set covers head diameters from 1/4 inch to 1 inch
• 6-flute geometry for smooth cutting and reduced chatter
• 90-degree included angle for standard fastener countersinking
• High speed steel construction handles a wide material range including stainless and high tensile steel
• Bright polished finish reduces friction and aids chip clearance
• Straight shank fits standard drill press and milling machine toolholders
• Plastic storage case keeps all 7 tools organized and protected

Compatibility

Designed for countersinking operations on alloy steel, aluminum, aluminum alloy, brass, cast iron, high nickel steel, high tensile steel, magnesium, magnesium alloy, mild steel, Monel, plastics, and stainless steel workpieces.

Installation Notes

Countersinks should be installed by a qualified machinist or tool-and-die technician familiar with proper speeds and feeds for the workpiece material. Secure the straight shank firmly in the chuck or collet before operation to prevent runout. Always power down and lock out the spindle before changing tools. Do not exceed the recommended RPM for the workpiece material and tool diameter to avoid premature wear or tool breakage.