Dremel 7300-N/8 MiniMite 4.8-Volt 2-Speed Cordless Rotary Tool for $22.99. Shipping is free on orders over $35. If needed, use this Filler Tool to pad the order for free shipping. Here is a screenshot for reference. Alternatively, it is available at Home Depot for $22.99 with in-store pickup. It features 6,500 and 13,000 RPM, and is compatible with Dremel bit accessories.