The Kalamazoo 6 4-Jaw Chuck #444 is a high-quality machinist lathe tool designed for precision machining. This chuck, with a 1-1/2-8 TPI thread size, is essential for securely holding and centering workpieces in a lathe, ensuring accuracy and stability during cutting and turning operations. The Kalamazoo brand is well-known for producing reliable and durable machining tools, making this chuck a valuable addition to any machinist’s workshop.