M.a. Ford. 79000002 Countersink Set 7 Pc 6 Flute Hss

Product Description

The M.A. FORD. 79000002 is a 7-piece high speed steel countersink set covering head diameters from 0.25 inches to 1 inch. Each countersink features a 6-flute design and an 82-degree included angle, which is the standard angle for flat-head fastener seating in metal fabrication and machining applications. The straight shank allows direct chuck mounting on drill presses, CNC mills, and handheld power drills. All seven tools carry a bright polished finish. The set ships in a plastic storage case and is suited for right-hand cutting operations. Licensed machinists, tool-and-die workers, and general metalworking tradespeople are the primary users.

This set is designed for countersinking operations across a broad range of materials including mild steel, alloy steel, stainless steel, cast iron, high tensile steel, high nickel steel, Monel, brass, aluminum, aluminum alloy, magnesium, magnesium alloy, and plastics. The 82-degree angle matches the seating geometry of standard flat-head machine screws and bolts commonly encountered in production and maintenance machining. The range of seven sizes makes this set appropriate for shops that need to cover multiple fastener head diameters without ordering individual tools. It is equally suited to production environments and maintenance repair operations.

Key Features

• 7-piece set covering head diameters from 0.25 inches to 1 inch
• 6-flute geometry for smoother cutting action and improved finish in the countersink seat
• 82-degree included angle matches standard flat-head fastener seating requirements
• High speed steel construction handles a wide range of ferrous and non-ferrous materials
• Bright polished finish reduces built-up edge on softer materials such as aluminum and plastics
• Straight shank for direct chuck mounting without adapters
• Plastic storage case keeps all seven pieces organized and protected

Compatibility

Compatible with 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. Designed for use in standard drill chucks accepting straight-shank tooling.

Installation Notes

Countersinks should be installed in a securely tightened chuck before use. Set spindle speed appropriate to the workpiece material and tool diameter - lower speeds are recommended for harder materials such as stainless steel and high nickel alloys. Secure the workpiece firmly before starting the cut to prevent tool chatter. Inspect each countersink for edge wear before use and remove any burrs from the shank to ensure concentric seating in the chuck.