Sealey Caulking Gun 280mm Heavy Duty AK4803Suitable for 310ml and 380ml cartridges up to 280mm length. Includes tip cutter, just insert the nozzle of the cartridge and squeeze the handle. Tip piercer cleaner for clearing sealant from dried nozzles. Hook end suitable for attaching to users belt. Specifications Detail Suitable for 310ml and 380ml cartridges up to 280mm length. Detail Includes tip cutter, just insert the nozzle of the cartridge and squeeze the handle. Detail Tip piercer cleaner