Lithium battery tools have the advantages of light weight, small vibration, low noise,easy carring and operation, It can greatly reduce labor intensity and improve work efficiency. FIXTEC F20+ series contain 100+ 20volt cordless tools, such as cordless impact drill, cordless rotary hammer, cordless impact wrench, cordless angle grinder, cordless saws, cordless spray gun, cordless nail gun etc. They share the same lithium battery, It's really a good deal !