Check the listing for details. SIGNODE SRC-1223 Steel Strapping Sealer,Manual 3XG96. Condition: New. Listed at 505.55 USD. Strapping Sealer, Tool Power Source Manual, Tool Strength Standard Duty, Tool Action Front Action, Fits Strap Width 1/2 in, Fits Strap Tensile .023, Tool Seal Type Open Seals, Tool Weight 3 lb, Tool Style Front Action Manually-operated sealers for steel strapping are used for low-volume applications or where access to an external power source is limited. They can be carried to the work location. The operator squeezes a lever to crimp and press the seal in place.Sealer tools for steel strapping crimp and secure strapping seals for steel and zinc-coated steel strapping. Strapping is used to bundle and secure items together for shipment and storage. The strapping is wrapped around a bundle or package and tightened, then a seal is crimped in place using a sealer tool.