Malco’s TY4G Tie Tensioning Tool tightens nylon ties to fiberglass duct take off connections faster, easier, and with better quality than can be done by hand. The TY4G Tie Tensioning Tool features a manual, easy to operate, cutting mechanism and comfortable gray vinyl cushioned grips. When the tie is tight, a simple pull of the lower handle causes a blade to engage and cut off the excess tail of the nylon tie. A reduced pinch point handle closing ensures peace of mind and reduces injury. Made with a clean, black baked on enamel wrinkle finish, this tool is made to weather the elements and stand up to abuse on-the-job. The TY4G and all other Malco Tie Tools are designed to work on standard 175 Ib. ties as well as thinner 125 Ib. Ties. For the best quality, use Malco’s Adjustable Nylon Ties when installing fiberglass flex duct.