7 automated manufacturing, machining and assembly lines for the automotive and other high volume manufacturing industries, comprising welding/assembly systems comprising electro-mechanical drives, multi-axis robots and welding machines, flexible machining systems comprising milling machines, turret mounted heads for multi-hole machining, low profile electro-mechanical feedslides, rotary transfer machines, modular programmable manipulators, pivoting dumb units, tabletop hemmers, hi-speed shuttles, transfer drives, lift drives and gantry drives, machines for the production of automobile body engine and chassis components; turn broaching machines, grinding machines, disc grinders, precision cylindrical production grinding machines and grinding systems comprising disc wheel, cylinder wheel, centerless wheel and roll wheel grinders; abrasive products, namely disc wheels, cylindrical wheels, centerless wheels, roller grinding wheels, diamond and CBN wheels and diamond dressing tools