The Ryobi ZRD552HK drill, with an adjustable auxiliary handle, provides a comfortable hold. The hammer and rotary action of this Ryobi corded drill is handy for nailing or drilling an object. The ½-inch chuck of this power drill holds the bit firmly. The lock-in feature of this Ryobi corded drill performs efficiently, when in use. The variable speed gear box of this power drill lets you adjust the force as per the material you are working on. The depth gauge rod of the Ryobi ZRD552HK drill makes it easy to measure the depth to which you have pierced the wall.