M.a. Ford. 79000013 Countersink Set 4 Pc 6 Flute Hss

Product Description

The M.A. FORD. 79000013 is a 4-piece high speed steel countersink set covering head diameters from 1/4 inch to 1 inch. Each countersink features 6 flutes and a 90-degree included angle, producing clean, consistent chamfers in a single pass. Shank diameters range from 1/4 inch to 1/2 inch, and overall lengths span 1.5 inches to 2.75 inches across the set. The bright polished finish reduces friction and aids chip evacuation. This set is appropriate for machinists, tool-and-die tradespeople, and maintenance technicians who need a range of countersink sizes on hand without pulling individual tools.

This set is suited for countersinking fastener seats in metal, wood, and composite materials across light manufacturing, maintenance, and fabrication environments. The 90-degree angle matches the most common flat-head machine screw and bolt standards used in general metalworking and assembly. The included plastic storage block keeps all four tools organized and protected between uses, making it practical for both shop and field service applications where multiple fastener sizes are encountered on a single job.

Key Features

• 4-piece set spans 1/4 inch to 1 inch head diameter range
• 6-flute geometry for smooth finish and reduced chatter
• 90-degree included angle matches standard flat-head fastener specifications
• High speed steel construction for durability across common workpiece materials
• Bright polished finish aids chip flow and reduces built-up edge
• Includes plastic storage block for organized tool retention

Compatibility

Designed as a general-purpose countersink set compatible with standard drill presses, CNC machining centers, and hand-held drill drivers accepting 1/4 inch to 1/2 inch round shanks. Right-hand cutting direction. No pilot included.

Installation Notes

Installation and use should be performed by qualified machinists or tradespeople familiar with rotating cutting tools. Secure the workpiece firmly before operation and confirm the drill chuck is properly tightened to the appropriate shank diameter before starting the spindle. Select spindle speed according to workpiece material and tool diameter following standard machining reference tables. Inspect each countersink for chipping or wear before use and do not exceed the tool's rated capacity.