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Ball-Nose End Mills



Ball End Mills have a hemispherical tip used to machine rounded details, such as the metal bearing grooves found in machines. Also called Ball Nose End Mills, they are used extensively in manufacturing tools & dies, and machining complex three dimensional contours with a smooth finish. Ball End Mills are very durable, and come with an array of surface coatings tailored for milling a wide range of materials, from plastics to titanium and steel alloys.

A ball end milling cutter is also known as a "ball nose mill".  The end of this tool is ground with a full radius equal to half of the tool diameter, and the edges are center cutting.  They can be single end or double end and they can be made from solid carbide or various compositions of high speed steel.  They can be general purpose or high perfomance geometries.  They can be used used for milling a large corner radius, grooving with a full radius, and contour or profile milling.  The smaller diameters can be used for engraving.  They are available in a wide variety of standard sizes and lengths.

Standard Coatings/Finishes:

  • Titanium Nitride (TiN) is a general-purpose coating that provides high lubricity and increases chip flow in softer materials. The heat and hardness resistance allows the tool to run at higher speeds of 25% to 30% in machining speeds vs. uncoated tools.
  • Titanium Carbonitride (TiCN) is harder and more wear resistant than Titanium Nitride (TiN). It is commonly used on stainless steel, cast iron and aluminum alloys. TiCN can provide the ability to run applications at higher spindle speeds. Use caution on nonferrous materials because of a tendency to gall. Requires an increase of 75-100% in machining speeds vs. uncoated tools.
  • Titanium Aluminum Nitride (TiAlN) has a higher hardness and oxidation temperature versus Titanium Nitride (TiN) and Titanium Carbonitride (TiCN). Ideal for stainless steel, high alloy carbon steels, nickel-based high-temperature alloys and titanium alloys. Use caution in nonferrous material because of a tendency to gall. Requires an increase of 75% to 100% in machining speeds vs. uncoated tools.
  • Aluminum Titanium Nitride (AlTiN) is one of the most abrasive-resistant and hardest coatings. It is commonly used for machining aircraft and aerospace materials, nickel alloy, stainless steel, titanium, cast iron and carbon steel.
  • Zirconium Nitride (ZrN) is similar to Titanium Nitride (TiN ), but has a higher oxidation temperature and resists sticking and prevents edge build up. It is commonly used on nonferrous materials including aluminum, brass, copper and titanium.