The 8G820V40894 is a Dremmel 8V Max Lithium-Ion Variable Speed Cordless Rotary Tool Kit. This kit is designed for maximum versatility with a range of accessories and features that make it a great tool for drilling, grinding, sanding, polishing, cutting, cleaning, and more. It has an electronic feedback that allows users to maintain a constant speed and optimize performance. The 8V Max lithium battery provides more power with fewer charges, making it great for longer projects. The kit also includes a flexible shaft attachment with a two-year warranty, a storage case, a circle cutter/ straight edge guide, and 28 genuine Dremel accessories.