Metabo W9-115 8.5 Amp 10,500 rpm Angle Grinder with Lock-On Sliding Switch, 4-1/2" Metabo LongLife motor with up to 50% more torque for quicker material removal, up to 20% higher overload capacity Suitable for AC/DC operation Metabo S-Automatic safety slip clutch helps the user to maintain control if the accessory jams reducing the likelihood of kickback Tool-free adjustable guard with 7 locking positions Gear housing can be rotated at 90Degree steps for increased comfort and ergonomics during left-handed operation or for cutting applications