I purchased a Snap On ATECH2FR125B that is advertised with a 5-125 ft-lb range.
According to the included documentation (which contradicts the website info), this torque wrench’s accuracy is as follows:
+/- 2% (CW), 20-100% of full scale (from 25-125 ft lbs)
+/- 4% (CW), 4-19% of full scale (from 5-25 ft lbs)
Based on this information, it seems like one torque wrench can be used for all fasteners between 5-125 ft lbs. For comparison, my Precision Instruments split-beam torque wrench is accurate to 4% for its entire usable range.
Also, the included calibration document seems to suggest that the wrench is equally accurate at 25 ft lbs and at 125 ft lbs; I was expecting to see some significant differences.
25 ft lbs = 0.8% tolerance
75 ft lbs = 0.0% tolerance
125 ft lbs = 0.1% tolerance
Based on all of this information, can I safely use this torque wrench for everything between 5-125 ft lbs? It just seems hard to believe that one torque wrench can truly handle such a large range.
Snap-on Store
shop.snapon.com
According to the included documentation (which contradicts the website info), this torque wrench’s accuracy is as follows:
+/- 4% (CW), 4-19% of full scale (from 5-25 ft lbs)
Based on this information, it seems like one torque wrench can be used for all fasteners between 5-125 ft lbs. For comparison, my Precision Instruments split-beam torque wrench is accurate to 4% for its entire usable range.
Also, the included calibration document seems to suggest that the wrench is equally accurate at 25 ft lbs and at 125 ft lbs; I was expecting to see some significant differences.
75 ft lbs = 0.0% tolerance
125 ft lbs = 0.1% tolerance
Based on all of this information, can I safely use this torque wrench for everything between 5-125 ft lbs? It just seems hard to believe that one torque wrench can truly handle such a large range.