The design of the VTD Torque Limiting Knob, which, due to its ergonomic balance, rests well in the hand, places particular focus on limiting tightening torque. This is done by a spring system which releases the grip after the desired torque is reached, signalled by a clearly audible click sound. By turning the knob anticlockwise, the patented mechanism unlocks automatically. The matte black, glass fibre reinforced thermoplastic knob is available with different torque values.