M.a. Ford 61018706 Single Flute Countersink 120 Degree Hss

Product Description

The M.A. FORD 61018706 is a single-flute, high-speed steel countersink designed for chamfering, countersinking, and deburring operations across a wide range of materials. It features a 120-degree included angle (60-degree centerline angle) and a bright, uncoated finish that suits general-purpose machining environments. The 3/16-inch straight-cylindrical shank accepts standard collet and drill chuck setups. With an overall length of 1.5 inches and a tip diameter of 0.045 inches, this tool is well suited for light precision work where a compact profile is required. Machinists, tool-and-die workers, and maintenance technicians are the primary users of this countersink.

This countersink is appropriate for use in manual machine tools, CNC machining centers, drill presses, and hand-held power tools where controlled countersinking or edge preparation is needed. Its single-flute geometry makes it effective on softer materials where chatter control and surface finish quality are priorities, and it also performs reliably on harder metals with proper feed and speed selection. No pilot is included, so the operator guides the tool via the machine spindle or drill chuck alone.

Key Features

• 120-degree included angle for standard fastener seat preparation and chamfering
• Single-flute design reduces chatter and produces clean entry angles on a broad range of workpiece materials
• High-speed steel construction provides durability across alloy steel, stainless steel, cast iron, aluminum, brass, magnesium, monel, plastics, and more
• 3/16-inch straight-cylindrical shank fits standard collets and drill chucks without adapters
• Bright, uncoated finish suitable for general-purpose use without added coating cost
• Compact 1.5-inch overall length allows use in confined or restricted-access locations

Compatibility

Designed 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 workpieces. Fits any spindle or chuck that accepts a 3/16-inch straight-cylindrical shank.

Installation Notes

This countersink is installed by machinists or maintenance technicians into a compatible collet, end-mill holder, or drill chuck. Always power down and lock out the machine spindle before changing tooling. Set spindle speed according to the workpiece material and tool diameter recommendations from the machine tool manufacturer. Secure the shank with adequate clamping force to prevent pullout during cutting.