Product details:

The M18 1/2 In. compact brushless drill/driver is the most powerful compact 18V drill on the market with 6-1/2 In. L body and 3.4 Lb. (with battery). Delivers 500 In. /Lb. of torque and 0-500/0-1800 rpm to tackle a wide range of drilling and fastening applications. Features all-metal gear case and 1/2 In. metal chuck. The M18 1/4 In. hex compact brushless impact driver has the fastest application speed its class and delivers 1600 In. /Lb. of torque, 3400 rpm, 4200 IPM.