What 1/2 Drive Dial Type Torque Wrench are you using?

If you need repairs or calibration these guys do a great job. Probably not a bad idea to give them a call about what you are working with. I would only send them major brands for repairs. The cheapies may be able to be calibrated but if any repairs need to be made parts may not be available for those off brands. Being in the tool business for near 3 decades, I have ran into a lot of models that couldn't be repaired/calibrated. Many because the ratchet head kits aren't available. Quad State Gauging & Measurement