The M18 cordless caulk and adhesive gun from Milwaukee Electric Tool reportedly delivers up to 950 lbs. of force for the highest viscosity materials, even in cold temperatures. It features a variable-speed trigger, anti-drip mechanism, and all-metal gears. According to the company, the tool will dispense up to 200 tubes of 10-oz. material on a single battery charge. (800) 729-3878, MilwaukeeTool.com.