When using a Small Diameter torque multiplier a reaction plate is necessary to absorb the resulting reactive force. Various styles are available for use in different environments.
Engineered to Order reaction plates are also available, see examples.
Single Sided Straight Reaction Plate for HT30...
Norbar has devised easy-to-use online calculators that support the correct application of torque in three key areas:
Norbar Torque Tools Inc. 36400 Biltmore Place, Willoughby, Ohio 44094, USA