End mill holders: Essentially for milling, these holders keep milling tools in place. Outer diameter (OD) and inner diameter (ID): These are universal holders that are interchangeable with many types of tools for cutting. Collet chucks: The variety of collet chucks work to hold different machinery tooling in place.

CAT Tool Holders This type of CNC tool holder supports ATC technology, also known as automated tool changer technology, which allows a quick change of different machine tools by the CNC machine itself. A retention knob is used to pull the tool holder body into the milling spindle and center it using the taper contact.

A milling machine removes material from a work piece by rotating a cutting tool (cutter) and moving it into the work piece. Milling machines, either vertical or hori- zontal, are usually used to machine flat and irregularly shaped surfaces and can be used to drill, bore, and cut gears, threads, and slots.

Steel is a popular choice for manufacturing tool holders in CNC machines. It is strong, durable and resistant to wear, making it ideal for holding cutting tools. Steel tool holders can be further treated with heat to increase their hardness and improve their resistance to wear.