Air Operated Trigger Grease Gun AIR OPERATED TRIGGER TYPE GREASE GUN B5907 Special model designed to accept 16oz (450g) Australian / NZ standard size cartridges or bulk grease Develops up to 9000 p.s.i. with 30 to 40 p.s.i. supply Single shot trigger action Latest plastic cartridges or bulk grease can be loaded without reversing plunger. Spare parts available Accepts standard 1/8"BSP nozzle