Fusion is a cordless nailer that uses Reflex Shot technology to provide the power of a pneumatic. The 15- and 18-gauge tools eliminate the hose associated with pneumatic and the replacement cost associated with gas-powered nailers. The 18-volt lithium ion phosphate battery can reach an 80 percent charge in 15 minutes. Cost: $349 to $389. Senco. 800-543-4596. www.senco.com.