Model 613080420. Quick Inox 10 Amp Variable Speed 5 in. Corded Flat-Head Angle Grinder - 613080420. Corded Flat-Head Angle Grinder. Power Source Corded. Inner Support Flange. Quick-Locking Nut. Vario-Constamatic (VC)-Full wave electronics for working at customised speeds to suit the application materials, and speeds that remain almost constant even under load.