The WH 36DB from HiKOKI is a 36V Brushless Impact Driver with a 1/4 Inch Drive. The increased voltage of the Lithium-ion battery from 18V to 36V results in slower temperature rise of the motor. The Multi-Volt Impact Driver can continuously drive large diameter and long screws for twice as long as its 18V counterpart. With a maximum tightening torque of 210Nm and 4 speed modes the power is adjustable to each application. With an approximate runtime per charge of 3700 x 4.0 x 50mm Wood Screws or 75 x 7.0 x 120mm Wood Screws, into hard wood without pilot holes. Featuring Triple Hammer Mechanism - The hammer with 3 strikers reduces vibration by making 3 impacts per rotation instead of the conventional 2. This results in greater comfort and less cam-out (driver slippage from screw head), and works great for light-duty applications such as fastening short or thin screws. In order to suit various applications, a 4-step tightening mode selector function is also incorporated. Sold with 2 x BSL36A18 Multi-Volt 2.5Ah 36V / 5.0Ah 18V, UC18YSL3 Charger and Carry Case.