DEWALT DCK277D2 Drill & Impact Driver Kit vs DeWalt 20V Cordless Drill and Impact Driver Kit

Both are 20V MAX brushless two-tool kits with a 1/2 in. drill/driver, 1/4 in. impact driver, charger and contractor bag, so the choice comes down to batteries and torque. The DCK277D2 ships with two 2.0 Ah compact packs and a drill rated 340 unit watts out; the DCF787 impact driver is rated 1,500 in-lbs. The DeWalt Cordless Drill and Driver kit ships with two smaller 1.3 Ah packs and lists a 3,200 RPM top speed, but its published specs are thinner. Owners of the DCK277D2 praise power, smooth triggers and battery life, while a minority report dead batteries or a broken driver out of the box. Neither is a hammer drill, so skip both for concrete.

• Choose the DEWALT DCK277D2 if you want the larger 2.0 Ah batteries, a documented 340 unit watts out drill and 1,500 in-lbs impact driver, and a kit with a long review record.
• Choose the DEWALT Cordless Drill and Driver if you want the lighter 1.3 Ah batteries for overhead and tight-space work and a kit with a 4.6 rating across more than 8,000 ratings.