Sturdy steel strapping tensioner 13-19mm for flat packages. The tensioner allows a quick and simple way of applying tension to your steel strapping to make sure it stays tight and secure around you products or pallets. Designed to be used with a manual sealing tool. Our tensioner is designed for use on flat and level surfaces and will work whether you are applying the tension in either a horizontal or vertical position. The strapping ends are simply fed into the tool, with the tension being applied manually via the tools handle. Adjustable to take 13 – 19mm wide strapping. Maximum 0.89mm thickness.