A.K.O., Inc. operates an ISO/IEC 17025 Accredited Calibration Laboratory located at our manufacturing plant in Windsor, Connecticut.

This facility operates using the same equipment we offer to our customers, ensuring we deliver the highest possible standard of calibration.

Using a combination of our off the shelf equipment, custom adapters, and internally developed specialty equipment, we are capable of calibrating almost any static torque device.



Please contact us prior to sending any torque tools to us.
When sending your equipment to us for calibration, please be sure to include:
  • All of the parts required to operate your equipment, including:
    • digital readouts
    • connecting cables
    • power cords
  • An itemized equipment list
  • Purchase and/or Instruction Orders (for established accounts)
  • Phone and Email contact information for:
    • Purchasing and Billing
    • Technical Questions about your equipment
  • Return Shipping Instructions
A.K.O., Inc. does not use RMA’s.


To confirm a specific capability or tool model, contact us at (860) 298-9765 or via this form.

Here’s a general list of the torque tools that we calibrate:
Torque Transducers:
AKO, Mountz, Atlas Copco, Snap On, AWS, CDI, Seekonk, Himmelstein, Norbar, Lebow, GE Angle Spline

Calibration of Moment Arms:
AKO OEM Equipment Only

Click Wrenches:
CDI, Snap On, Proto, Mountz, Sturtevant Richmont, Norbar, Tohnichi, Armstrong, and many others.

Hydraulic Torque Wrenches:
Hytorc, Hydratight Sweeney, Advanced Manufacturing, Enerpac, Bolttech, Atlas Copco

Pneumatic Torque Guns:
RAD, Enerpac, Hytorc

Torque Multipliers:
Power-Dyne, Sweeney, ATP, Geartronics, Williams, Proto, Snap On, Armstrong

Specialty Applications:
Hubbell C3031689NG, GE 11C3033G02, and GE 9C3185G02

Miscellaneous:
Pressure Transducers and Class F Weights

Non-Accredited Calibrations:
Load Cells, Dynamometers, Force Gages up to 30,000 lb., Cable Tensiometers, and Electric Torque Guns