Angle tensioning was introduced to eliminate incorrect tensioning of bolts due to the inconsistent friction forces that are measured by the traditional torque wrench. When angle tensioning is used the effect of friction at the spot face and threads has no effect on the clamping pressure applied to the gasket or component. The tension wrench does not measure clamping pressure, it is only measuring the friction forces created by each bolt as it is tightened. As each bolt can produce uneven friction forces the clamping pressure attained by this traditional method is also uneven. Angle tensioning relies totally on the principal of using a starting point established by a tension wrench that is even for every bolt in the series. The starting point is evenly established by tightening up all the bolts to a very low torque setting where friction is negligible. From that point the bolts are tightened in a series of angle steps. These angle steps ensure all bolts exert even pressure to the component being clamped, irrespective of the friction created during tightening.