Add a Type 2 traceable Certificate of Calibration with data to a Seekonk torque tool or Tester.
Warranty
All Tohnichi products are thoroughly checked and tested at the factory before shipment. The accuracy of each tool should be as stated for each model as a percentage of reading unless otherwise noted. Hand tool durability is based on repeated movement tests over a minimum of 100, 000 cycles by a durability testing machine. Should defects due to faulty materials and workmanship develop within one (1) year from the date of sale, it will be repaired and put in workable condition or replaced free of charge if returned to Tohnichi with proof of purchase. The warranty is not valid if the product has been misused, tampered with, or abused.