Best Heavy Duty Cordless Drill? Here, our top 5

DEWALT DC742KA Heavy-Duty Cordless 12-Volt 3/8-Inch Compact Drill/Driver
This compact drill provides its users with first-rate performance and durability along with exceptional ergonomics. Increased speed and power keep the performance of the drill up while the frameless motor and all metal planetary gear support the durability. Also included is a built in LED light and onboard bit storage as well as two DW9072 12 volt Battery Packs, a DW9116 1 hour charger, and a heavy-duty kit box.

DEWALT DC730KA Heavy-Duty Cordless 14.4-Volt Compact Drill/Driver
The heavy-duty DeWalt DC730KA Drill/Driver is a compact, cordless tool back by the power of a high-performance frame-less motor. With the ability to deliver 300 unit watts of maximum power and dual speed capability, this versatile drill/driver makes it easy to take on tough tasks, while the 1/2-inch ratcheting chuck prevents bit slippage, so you get more precise results.

DEWALT DC750KA Heavy Duty 9.6-Volt 3/8-inch Cordless Drill/Driver Kit
The DeWalt DC750KA Heavy Duty 9.6-volt 3/8-inch Cordless Drill/Driver comes with a heavy-duty 3/8-foot single sleeve ratcheting chuck for tighter bit gripping ability. Features include a dual speed range (0-to-300 RPM and 0-to-1,100 RPM) for added versatility and a 15-position adjustable clutch for added control. Other features include a rubber grip for maximum comfort and a compact size

DEWALT DC759KA Heavy-Duty 18-Volt Ni-Cad 1/2-Inch Cordless Drill/Driver Kit
The DeWalt DC759KA Heavy Duty 18-volt Ni-Cad 1/2-inch Cordless Drill/Driver features a compact size to fit into tight spots. Its lightweight design (only 5.2 pounds) minimizes user fatigue, and yet this drill/driver can still pack a punch–its high-performance motor delivers up to 380 unit watts. Other features include a dual speed range (0-to-450 RPM and 0-to-1,500 RPM)