The Hertel Square End Mill features precision engineering for superior machining performance. With a 1/8" diameter and 3/8" length of cut, this 4-flute cobalt end mill delivers excellent results for various milling applications. The tool measures 3-1/16" in overall length with a 3/8" shank diameter and incorporates a 30-degree helix design for optimal chip evacuation. The TiN (Titanium Nitride) finish enhances durability and extends tool life by providing increased surface hardness and heat resistance. This double-ended design from Hertel's HSQCO4-TN-CCDE series offers versatility for professional machinists and fabricators. The cobalt construction provides enhanced heat resistance and maintains edge sharpness when working with harder materials. Ideal for precision milling operations in manufacturing, toolmaking, and industrial applications where accuracy and tool longevity are essential.