RotoZip's cordless CR18L spiral saw weighs 2.8 pounds (with battery) and runs at 30,000 rpm on an 18-volt Bosch Litheon battery. It features a nonmarring depth guide, a cast aluminum front housing, and a soft-grip body. The built-in LED information display houses a fuel gauge and an overload indicator. The batteries are compatible with Bosch 18-volt Litheon tools. Price: $199. 877-768-6947. www.rotozip.com.