Torque wrench 1.Applying for a patent in USA, Germany,China,Taiwan now. 2.Multiple engineering units :N.m,1b.ft,1b.in,kg.cm. Torque wrenchfeatures: 1.Durable high torsion and reversible ratchet with quick changing and easy to release.2.Sepcial design Load cell is made for special construction.The same value will be showed when force is loading on any point of Grip handle.3.Durability steel tube ...