Bosch CLPK222-181-RT 18V 4.0 Ah Cordless Lithium-Ion Brute Tough Hammer Drill and Hex Impact Driver Combo Kit (Certified Refurbished) HDH181X Brute Tough 1/2 In. hammer drill/driver 25618 1/4 In. hex impact driver Two Lithium-Ion FatPack batteries for long runtime Drill/driver provides 750 In.-Lbs. of torque and up to 27,750 BPM Drill/driver includes Active Response Technology to reduce kickback