Sibille MS100N0 3/8 in Reversible Torque Wrench. The MS100N0 series 4-20 Nm insulated reversible torque wrench with 3/8 in drive from Sibille. Designed to help protect the user during live working, accidental contact or flashover when working on or next to energised systems. When the tightening torque is reached, the torque device trips at the optimum limit and resets automatically. Features and Benefits:. Ideal for precision tightening and loosening nuts or bolts Tightening torque can be made by turning the pivoting handle Guaranteed to protect up to 1000 V Meets EN 60900 / CEI 60900 / EN 6789