The Polychem B series battery operated friction weld tools are “state-of-the-art”, ergonomically designed. The new B Series are shorter in length, lighter in weight, and better balanced for easier operation. The Polychem B Series tools can pull up to 800 lbs. of tension and operate with both polyproplylene and polyester plastic strapping 3/8″ to 3/4″ wide up to .050″ thick. No special change parts are required to adjust for strap width and thickness. The lithium polymer non-memory battery is superior to nickel-cadmium type batteries in that lithium polymer batteries can be fully re-charged at ANYTIME without memory loss.