M.a. Ford 61T025004 Countersink 100 Deg 1/4 Inch Hss Tin

Product Description

The M.A. FORD 61T025004 is a single-flute countersink designed for creating clean, accurately angled entry holes ahead of fastener seating. Built from high-speed steel (HSS) with a titanium nitride (TiN) coating, it delivers extended tool life compared to uncoated HSS. The included angle is 100 degrees, the maximum cutting diameter is 0.25 inches, and the straight cylindrical shank measures 0.25 inches in diameter. Overall length is 2 inches. Machinists, toolmakers, and metalworking technicians use this tool in drill presses, CNC mills, and handheld power drills for deburring and countersinking operations across a broad range of materials.

This countersink is suited for light production and maintenance machining environments where a compact, single-flute tool is preferred for chatter reduction and consistent surface finish. The right-hand cutting direction makes it compatible with standard spindle rotation. 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, making it a versatile tool for job shops and maintenance facilities working across mixed-material workflows.

Key Features

• 100-degree included angle for countersinking fastener seats and chamfering entry holes
• Single-flute geometry reduces chatter and promotes smooth surface finish
• TiN coating increases surface hardness and reduces friction for extended tool life
• High-speed steel construction handles a wide range of ferrous and non-ferrous materials
• Straight cylindrical shank fits standard drill chucks and collet holders
• Compact 2-inch overall length suits benchtop drill presses and handheld applications

Compatibility

Compatible with alloy steel, aluminum, brass, cast iron, high-nickel steel, high-tensile steel, magnesium, magnesium alloy, mild steel, Monel, plastic, and stainless steel. Designed for use in any machine spindle or chuck accepting a 0.25-inch straight cylindrical shank.

Installation Notes

Secure the shank firmly in a drill chuck or collet before operation and verify runout before cutting. Power down the machine and lock out energy sources before installing or removing the tool. Apply cutting fluid or lubricant when working ferrous or stainless steel materials to preserve coating life. Follow applicable shop safety standards and machine manufacturer guidelines for spindle speed selection based on material and cutting diameter.