Dremel 100-N/7 Single Speed Rotary Tool Kit for $29.00. Shipping is free on orders over $49. If needed, use this Filler Tool to pad the order for free shipping. Here is a screenshot for reference. This tool kit features a single speed control, 35,000 RPM, and includes a wrench, mandrel, 1/2″ sanding drum, dressing stone, emery cut off wheel, 1/2″ 120-grit sanding band, aluminum oxide grinding stone, and silicon carbide grinding stone. Most places have it for over $40.