... rotary burrs, carbide burrs, hardmetal burrs, super hard tools, carbide tools, tungsten steel grinder, solid carbide end mills, carbide milling ... producing efficiency and realizing fitter mechanization, and it isnecessary tools for fitter and repairer2. main features:1. may ... burrs is generally drived by handled electric and pneumatic tools( or machine tools). The normal speed of rotation is 6,000 ...