Metabo 613071520 18V 5.2 Ah Cordless Lithium-Ion 4-1/2 in. Non-Locking Angle Grinder Kit Slim design prolongs comfort when working overhead or in areas with limited space. Robust motor for long service life with overload protection that protects it from overheating Tool-free adjustable guard is twist-proof providing security while using the grinder Battery pack can be swiveled to more convenient position to work better in hard to reach places Detachable dust filter protects motor from coarse particles