SKIL PWRCore 20 4.5-in 20-Volt Sliding Switch Cordless Angle Grinder (Charger Included and 1-Battery)Use this cordless grinder for a variety of DIY tasks including cutting tile, grinding metal, sanding, polishing, sharpening, and more The PWRCore 20 volt lithium battery has an innovative temperature management system to keep the battery cool and powering on through your project 3 Position side handle allows you to choose the position that works best for you and the task at hand Dual function lock on switch prevents accidental start ups, and also