Torque Formulas

When using a torque wrench-SST or equivalent combination, the written torque must be recalculated due to the extra length that the SST or equivalent adds to the torque wrench. Recalculate the torque by using the following formulas. Choose the formula that applies to you.

TORQUE FORMULAS

Torque Unit	Formula
N.m	N.m x [L/(L+A)]
kgf.m	kgf.m x [L/(L+A)]
kgf.cm	kgf.cm x [L/(L+A)]
ft.lbf	ft.lbf x [L/(L+A)]
in.lbf	in.lbf x [L/(L+A)]
A : The length of the SST past the torque wrench drive. L : The length of the torque wrench.

Fig 1: Measuring Length Of SST & Torque Wrench

Courtesy of MAZDA MOTORS CORP.

Vise

When using a vise, put protective plates in the jaws of the vise to prevent damage to parts.

Fig 2: View Of Proper Use Of Protective Plates In Jaws Of Vise

Courtesy of MAZDA MOTORS CORP.