The fixture designing and manufacturing is considered as complex process that demands the knowledge of different areas, such as geometry, tolerances, dimensions, procedures and manufacturing processes. Thespecifications & limitations of the machine limit the ideas of designing. To design a fixture and collet, a designer must know manufacturing procedures. He must be able to visualize exactly how the workpiece is to be made. He should be competent to judge the merits of different methods. He must have knowledge of standards and procedures. He must be inventive and original. He must be able to incorporate his ideas in design layouts. He must understand how tools perform their function. He needs a good background in mechanics and mathematics. He should also know how the physical properties of materials used in making tools. A mastery of drafting techniques is an essential to the tool designer as ability to read and write.