Bosch Power Tools. Combining drilling and driving capabilities with the added power of impact fastening, the multifunction 18-volt Impact Drill/Driver (model 26618-01) is a versatile tool for a number of jobsite applications. A two-speed motor offers a high speed for small-diameter drilling and high torque/low speed for drilling with spade bits or for precision driving. For larger-diameter driving and fastening jobs, the tool offers 1,500 inch-pounds of torque. The 18-volt lithium-ion battery platform offers enough power to drive 50% more screws per charge, and drill 50% more holes per charge than other models, the maker says. 877.267.2499.