High power in slender and compact body with durable metal gear housing.USER BENEFITS:Dual purpose for ?Rotation only? and ?Rotation with hammering?.Built-in torque limiter stops bit rotation when hitting reinforcements.New reversing system allows: Extended service life of carbon brush. No power reduction even in reverse rotation.Double Insulation, Variable Speed, Reversing, Mechanical 2-Speed, Torque Limiter, Constant Speed, Soft Start and Carry Case.