The 12 V max CXT® Lithium-Ion cordless two piece combo kit includes a 3/8 in driver-drill (FD09Z), 1/4 in impact driver (DT03Z), two 12 V max CXT® Lithium-Ion 2 Ah batteries and a tool case. The 3/8 in driver-drill delivers power and speed in an ultra-compact size for efficient drilling, driving and fastening. It has two speeds (0 to 450 and 0 to 1700 rpm) and delivers up to 250 in-lb of max torque. The Makita 1/4 in 12 V max CXT® cordless impact driver delivers power and speed in an ultra-compact size for driving and fastening applications. The impact driver has variable speed (0 to 2600 rpm and 0 to 3500 ipm) and delivers up to 970 in-lb max torque. With Makita 12 V max CXT® batteries, users get superior balance and ergonomics over pod-style batteries. For longer run time, 12 V max CXT® cordless tools are also compatible with the 12 V max CXT® Lithium-Ion 4 Ah battery (BL1041B, sold separately). 12 V max CXT® Lithium-Ion batteries are engineered with a battery protection circuit that protects against overloading, over-discharging and over-heating. It's part of the expanding 12 V max CXT® Series, combining performance with superior ergonomics in a compact size.