LOW series is the professional Low profile hydraulic torque wrench which WREN vigorously extends in international market. Compare with the square drive hydraulic torque wrench, this series work directly on the nuts, and its body suits well in the narrow space. LOW covers the nuts from S19 to S175.To fulfill all different working situations, the user can just replace the hexagon cassette because the hexagon cassette is changeable, or add the reducer. WREN provide after-sales service all over the world, and already got the approved by CE certificate.