M.a. Ford. 92050006 Countersink 120 Degree 3 Flute Hss

Product Description

The M.A. FORD. 92050006 is a single-end, three-flute countersink designed for right-hand cutting in a wide range of materials. Built from high-speed steel with a straight-cylindrical shank, it delivers consistent chamfer geometry at a 120-degree included angle. The 1/2-inch head diameter and 1/4-inch shank diameter make it compatible with standard drill chucks and collet holders. At 2 inches overall length, the tool is well-suited for bench work, CNC operations, and hand-drill applications where a clean, controlled countersink is needed. Machinists, tool-and-die technicians, and maintenance professionals are the typical end users.

This countersink is suited for use on aluminum, brass, magnesium, magnesium alloy, high-nickel steel, Monel, and plastic. The 120-degree included angle is a common specification for aerospace-style fastener seats and general-purpose chamfering where a wide, flat countersink profile is required. It performs in both production-floor and job-shop environments where consistent entry geometry across multiple material types is a priority.

Key Features

• 120-degree included angle for wide chamfer profiles and aerospace-style fastener seating
• Three-flute geometry promotes smooth cutting action and reduces chatter
• High-speed steel construction suitable for a broad range of workpiece materials
• 1/4-inch straight-cylindrical shank fits standard drill chucks and collet holders
• Single-end design with 1/2-inch head diameter and 2-inch overall length
• Right-hand cutting direction compatible with conventional drill press and CNC spindle rotation

Compatibility

Designed for countersinking operations in aluminum, brass, magnesium, magnesium alloy, high-nickel steel, Monel, and plastic workpieces. Fits any tool holder or drill chuck accepting a 1/4-inch straight-cylindrical shank.

Installation Notes

Machinists and maintenance technicians should secure the shank fully in the chuck or collet before operation and confirm the spindle is at a dead stop before tool changes. Use appropriate cutting fluid or lubricant for the workpiece material to extend tool life and improve finish quality. Inspect the cutting edges for wear before each use; a dull countersink will produce rough chamfer walls and increase the risk of workpiece damage.