Our torque wrenches are warranted for one year or 10,000 cycles, whichever comes first, and should be calibrated in that same interval.
For calibration purposes we've partnered with Angle Repair & Calibration Service, Inc.
They have 40+ years of experience in servicing torque measurement tools and would be glad to work with you to ensure your wrenches read correctly.
You can contact them at estimate@anglerepair.com or by phone at 304-253-5729.