Metabo W8-115 4-1/2-Inch Angle Grinder Kit Metabo "Quick" quick tool change without using a key quick, comfortable and safe Metabo dust protection technology for extremely long service life of unit: marathon motor with winding protection grid, fully enclosed switch, labyrinth seals on the ball bearing Ergonomic housing design with distinctive indents for comfortably holding the device during clearing and roughing, as well as slip-proof holding of the unit Additional vibration damping Metabo VibraTech (MVT) handle for convenient continuous operation Tool-less guard adjustment