This Milwaukee M18 Grease Gun with M18 5Ah Battery Pack bundle includes (1) 2646-20 and (1) 48-11-1850. The Milwaukee M18 cordless 2-speed grease gun delivers maximum pressure and unmatched versatility, offering an industry-leading 10,000 PSI max operating pressure and a patent pending pre-set grease counter that allows service and maintenance professionals to dispense precise amounts of grease. The tools 2-speed design offers users the ability to select between max pressure and max flow rate. Other unique features include an on-board LED light, a lock-on/lock-off trigger and a plunger rod with markings to gauge how much grease is left in the barrel. The Milwaukee M18 RedLithium XC5.0 battery pack delivers up to 2.5X more runtime, 20% more power and 2X more recharges than its competition. The lithium-ion battery pack has superior pack construction, electronics, and performance delivering more work per charge and more work over pack life than any battery on the market. The rechargeable battery delivers 5.0 amp-hours of runtime. Each battery pack is durably built for heavy duty use, runs cooler, and performs in climates below 0 deg. F/-18 deg. C.