the milling cutter is metal. the industry of metalworking by cutting, gear-cutting manufacturing of parts and gears with oil cooli

abstract and automate background closeup cog cooling cutter cutting cuttings cylindrical design drilling engine engineering gear gearcutting gears hob hobbing industrial industry involute machine machinery machining manufacture manufacturing master mechanical metal metallic metalwork metalworking milling motion mwtalworking oil oiling part parts pattern pinion precision pressure production quality steel technology teeth tool working worm