The DWE4011 4-1/2" Small Angle Grinder with One-Touch™ Guard has a powerful 7 Amp motor for fast material removal. One-Touch™ Guard eliminates the need for a tool to adjust the guard location.; 7 amp AC/DC, 12,000 rpm motor designed for faster material removal and higher overload protection; One-Touch™ guard eliminates the need for a tool to adjust the guard location.; Hex wrench replaces spanner wrench - hex wrench is found in most tool boxes if lost; Low profile, jam-pot gear case increases durability and allows tool to fit into tight spaces; Quick-Change™ wheel release allows tool-free wheel removal without the need for a wrench; 2-position removable side handle provides increased comfort and control; Slim, ergonomic body design provides increased comfort in extended use applications; 5/8"-11 spindle thread accepts a wide range of 4-1/2" accessories; Replaces D28110; This product runs off of AC/DC power