MAKITA DLX2145MX - 18V LXT 2 Tool Combo Kit, 4.0Ah x2Makita is the innovation leader in cordless tool technology, and the DLX2145MX Combo Kit gives you two cordless solutions to handle most drilling, driving and fastening applications. The 18V LXT Impact Driver is light weight for a superior power to weight ratio, and the 18V LXT Hammer Driver Drill delivers 810 in. lbs. of torque for the most demanding drilling and driving applications. The 18V LXT 4. 0Ah battery provides 35% more run time per charge