2 Defining the bending point of the reaction bar, Fig. A
Use a piece of paper to make the drawing and measurements. Use a ruler and a protractor for accurate drawings.
Determine the minimum angle a, according to the table.
Determine the contact point (K) of the reaction bar. Make it as far away from the tool centre line as possible.
Measure the resulting angle a, and make sure it is greater than the table entry for the selected torque.