Mini-Circuits’ Precise Break-over Torque Wrench TRQ-10-06 allows for precise mating force and ease of use in tight spaces. The head will break over to signal the user when the preset torque value is achieved. It will effectively prevent over/under tightening. Groove at end of handle marks position in which to hold wrench. Please see app note AN-71-001 for instructions on handling 1.0mm connections.