The Metabo WEF9-125 professional series 5 In. Flat-Head angle grinder features the world first power tool to grind and cut in 43 degree angles and narrow spaces faster and safer then well-known working methods. No other power tool on the market, not a fillet weld grinder, nor a long-neck grinder allows users to grind or cut welds in narrow angles like the new Flat-Head grinder does. Metabo features their 8. 0 Amp, 910 watt LongLife 10, 000 RPM motor, thermal overload protection, tool-free guard adjustment, electronic speed stabilization and electronic (clutch) jam protection.