Rotary Tool Kits By Buffalo ToolsBoth feature durable, double insulated, impact resistant houseing. Compact, lightweight designmakes it easy to operate and store. Comes with 42" flex-shaft attachment. Variable speeds 8,000 to 30,000 RPM. Accepts accessories up to a 1/8" shank. Each kit includes 1 rotary tool, 1 flexible shaft, 1 plastic case and 39 of the most popular accessories.