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 ... is easy and convenient to read.6. Multiple engineering units :N.m,1b.ft,1b.in,kg.cm.7.With fuctions keys ...