The Makita Cordless Grease Gun is capable of pressurizing up to 10,000 psi for better grease penetration. The unit is powered by a lithium-ion battery. There are two speed modes - slow and auto mode - to ensure better lubrication control. In auto mode, the tool will deliver grease according to the resistance of the part that is being lubricated. The maximum grease delivery rate is 290 ml per second. For ease of use, there is a locking of the start button. The weight of the gun is 11.3 pounds. The grease gun has a reinforced hose for easier distribution of lubricant. The grease gun can use pre-packaged grease cartridges or fill the unit's reservoir by hand.