Torque Limiting Torque Screwdrivers

July 1, 2011
The TLS is a pre-set torque screwdriver that's ideal for production applications where over-torque conditions are not tolerated. Built with a cam-over design, the accurate TLS torque screwdriver  prevents a fastener or bolt from being over-torqued. The design action of the cam-over torque screwdriver is such that when the tool reaches its pre-set torque value the mechanism disengages from the drive thus limiting the torque applied. Designed for variety of industries like aerospace, automotive, electronics, energy, medical, and packaging, the Mountz Inc. TLS torque screwdriver ensures proper torque control. A pre-set torque screwdriver   is similar to a person setting an alarm clock to signal the achievement of a selected time. The torque screwdriver is pre-set to the required torque value of the application and then the tool signals the operator when torque is achieved.

  Inside the screwdriver, a precision radial ball clutch "slips-free" when the set torque is reached preventing over-torquing. Also, the thrust bearings insure that the torque setting is independent of any end load applied by the operator.

Designed and manufactured to meet or exceed the accuracy and repeatability requirements of ISO6789: 2003, Mountz  offers various TLS torque screwdriver models that range from 0.7 ozf.in to 120 lbf.in. Featuring a tamper-proof internal adjustment, the torque screwdrivers have no external adjustment scale and must be preset using a torque tester .

  • prevents a fastener or bolt from being over-torqued
  • ensures proper torque control.
  • models that range from 0.7 ozf.in to 120 lbf.in