Sheet-metal work 2 Shop mathematics 2 Bolts 1 Bolts and nuts 1 Cams 1 Computer-aided design 1 Dies (Metal-working) 1 meer ... Extrusion 1 Finishing 1 Gearing 1 Heat treatment 1 Jigs and fixtures 1 Joints (Engineering) 1 Laying out (Machine-shop practice) 1 Machine-shop practice 1 Machine-tools 1 Machinery 1 Machining 1 Machinists 1 Mechanical drawing 1 Mensuration 1 Metal castings 1 Metal-work 1 Metal-working machinery 1 Metals 1 Metric system 1 Molding materials 1 Non-ferrous alloys 1 Patternmaking 1 Plating 1 minder ...