"FW-88 series are 1/2"" impact wrenches designed with dual chamber motor and double hammer clutch for high power and high durability. The recommended working torque range is from 24 to 40Nm (18 - 30ft.lbs). The range designed suitable for different working joints with high productivity. FW-88 series consists of 2 type of anvils - flat button retainer and pin-hole retainer. The range also provide PT and NPT inlet for all markets."