A bit of grease is an essential step to maintaining a variety of machinery - from cars to workshop equipment. ToolPRO grease guns will make the job cleaner and easier. If more precise grease output is what you are chasing, the ToolPRO 500mL Variable Stroke grease gun is the tool for you. The trigger style action allows for easy, single handed use whilst the variable stroke feature allows simple pressure and volume control. Simply use short pumps for increased grease pressure and a full pump for increased volume output.?? Not quite sure what you were getting at here so may not have re-worded correctly?? This grease gun has been fitted with a 300mm flexible hose to assist reaching into tight areas and a 4 jaw coupler which will suit most standard grease fittings. The design includes 2 way loading for standard 450g grease cartridges and is also suitable for 500mL bulk loading. Once reloaded, this grease gun is simple to bleed with the easy to use bleed valve located on the head assembly.