Dremel 7700-1/15 MultiPro 7.2-Volt Cordless Rotary Tool Standard Kit for $29.00. 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 your reference. It features 10,000 and 20,000 rpm speeds, and includes 15 accessories and a 3-hour charger with LED light indicator. Most places have it for about $39.