These supplementary units are designed to help students with special needs learn and apply machine shop skills. Nine competencies that are difficult for special needs students to grasp or that would help them get a future job in the field were chosen from the regular machine shop curriculum. Specific objectives for these competencies are listed at the beginning of each of the nine self-paced units. The units contain large print, simplified text, and numerous drawings to aid in comprehension. Each unit contains the following sections: introduction, objectives, study questions, and student assessment; terms and equipment list; information sheets for each competency; skill sheets (exercises); activity sheets; and unit tests and performance checklists. A section on instruction information contains notes to the instructor, suggested resources, and answer Keys. The nine units cover the following topics: calculating speeds and feeds, using a rule, micrometers, blades for sawing, selecting and sharpening a drill, using a computer numerically controlled (CNC) machine, CNC machine safety, tool variables for machining, and grinding the lathe toolbit. (KC)