M.A. Ford 16578740 Tuffcut GP 4 Flute Ball Nose End Mill Stub 20.0 mm pneumatic accessory

20.0 mm ball nose end mill

The M.A. Ford 16578740 Tuffcut GP is a 4 flute ball nose end mill with a 20.0 mm diameter. It is designed for general-purpose milling in a variety of materials using CNC machinery. The stub length provides increased rigidity for shallow pocketing and profiling operations. This new accessory suits machinists and fabricators requiring precise contouring capability.

Installation and common issues

The tool mounts directly into a compatible tool holder or collet sized for the 20.0 mm shank. Secure clamping is essential to prevent runout or tool pull-out during high-speed rotation. Vibration and premature wear typically indicate excessive overhang or incorrect feed rates for the material. Users must observe the California Proposition 65 warning regarding exposure to listed chemicals during handling and machining.

Practical limits of the interface

The fixed 20.0 mm diameter determines the minimum internal radius achievable in a workpiece corner. The stub length restricts the maximum axial depth of cut to shallow applications only. The 4 flute design limits chip evacuation capacity compared to fewer flutes, affecting performance in deep slots or sticky materials. Tool life and finish quality depend heavily on matching speed and feed to the specific workpiece material.