The Dremel 4000 High Performance Rotary Tool Kit is a versatile and powerful corded electric tool that comes with a carrying case and accessories. With a keyed chuck type and a voltage of 120V, this tool kit is designed for precision and efficiency. The gray-colored tool kit includes 6 to 50 pieces, depending on the model number, and measures 3.98 x 15.59 x 10.43 inches in diameter. Weighing 4.30 lbs, this Dremel tool kit is perfect for various home and workshop projects requiring a high-performance rotary tool.