A Precision Spindle Assembly is a vital part of the machining process, especially for precision machining of solid materials such as brass or aluminum. As a result of a very complex construction, there are typically several steps in the Precision Spindle Assembly before it can be produced. The machine tool used in this assembly is generally a CNC router machine (CNC stands for "Computer Numerated Control"), which utilizes computer numerical controlled (CNC) software to control all the actions of the tool. This guide describes the steps involved in Precision Spindle Assembly (press brakes, cam locks, etc. ).

Precision Spindle Assembly has two major parts: the Precision Tube and the Precision Spindle. The precision tube is typically made of fiberglass reinforced nylon, and the spindle itself is typically either a precision die cast aluminum or high precision steel tool. The main benefit of Precision Spindle Assembly is that it minimizes possible metal slip and eliminates the need for an expensive heavy duty die cast machine tool. Many companies use high precision spindles in high volume production because of their high level of accuracy and reliability, resulting in a more economical setup. Precision Spindle Assembly also allows for a higher level of customization, because the tools that are used can be changed to a particular diameter, material or length depending on the situation.

The first step in Precision Spindle Assembly is preparing the work piece for installation. After the work piece has been clamped or milled to precise tolerances, it is usually necessary to attach a spindle guide rail to the front of the work piece. This guide rail will help keep the spindle in the exact position during the Precision Spindle Assembly process and will also help prevent against interference from adjacent pieces during the process. On some machines, the spindle guide rail can also be attached to the lathe. After the work piece has been clamped or machined, the next step in Precision Spindle Assembly is installing the spindle bolts and other components.