This follow-up video from School of the American Rifle confirms that a newly purchased Harbor Freight ICON professional compact torque wrench is within acceptable calibration limits. The instructor tested the wrench across its full range, both forward and reverse, and found it to be consistently less than one pound out of calibration, indicating good accuracy for its price point.
This video reviews the Harbor Freight ICON Professional Compact Click Torque Wrench (40-200 in-lb). Testing revealed the wrench to be significantly out of calibration, reading 48 in-lb when set to 40 in-lb. The instructor notes this inaccuracy makes it unsuitable for critical firearm applications like mounting AR-15 rail systems, which often have precise torque specifications.
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