YG-1 Carbide Extra End Mill Cutting Dia 5 mm, Overall Length 75 mm, No of Flute 4, G9453905P

YG-1 Carbide Extra End Mill Cutting Dia 5 mm, Overall Length 75 mm, No of Flute 4, G9453905P

An extra end mill, also known as an extended reach end mill, is a specialized cutting tool designed for machining applications that require deep cavities, extended reach, or access to hard-to-reach areas within a workpiece. It shares similarities with standard end mills but features an extended length, allowing it to reach deeper into the material while maintaining stability and accuracy.

The design of an extra end mill typically includes a longer flute length and shank compared to standard end mills. This extended length enables it to reach recessed features or intricate geometries that may be inaccessible to regular-length tools. It's particularly useful in industries such as aerospace, automotive, and mold making, where complex part designs and deep cavities are common.

The extended reach capability of extra end mills offers several advantages in machining operations. It reduces the need for multiple tool changes and setups, saving time and increasing overall productivity. Additionally, it minimizes the risk of tool deflection and chatter, ensuring precise and consistent machining results, especially in deep pocketing or profiling applications.

Extra end mills are available in various configurations to suit different machining requirements. They come in a variety of flute designs, including standard, ball nose, and corner radius, allowing for versatility in achieving specific surface finishes and contours.

Materials used in the construction of extra end mills include high-speed steel (HSS), carbide, and cobalt, each offering unique properties such as hardness, wear resistance, and heat tolerance to suit different machining conditions and workpiece materials.