Drive Torque Wrench With Case

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3/8 Inch1/2 Inch
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3/8" Drive Torque Wrench Micrometer-Type Economy Torque Wrench. Includes graduations in both English and metric to the nearest 1 in. lbs. Ranges from 20 in. lbs. to 200 in. lbs. to handle even the smallest Rotax engine fasteners. 3/8' drive. 11' long. Weight 1.4 lbs. Includes fitted plastic storage case.

1/2" Drive Micrometer-Type Torque Wrench. Includes graduations in both English and metric to the nearest 1 lbs. Ranges from 10 ft lbs. to 150 ft lbs. to handle even the largest Rotax engine fasteners. 1/2" drive. 19" long. Weight 2.4 lbs.

Both Sizes include fitted plastic storage case.
Unit calibrated when manufactured; Tool can not be re-calibrated.
California Prop 65 Warning Symbol

WARNING: The product may contain and/or expose you to a chemical(s) or substance(s) which are known to the State of California to cause cancer and/or birth defects or other reproductive harm.


Very satisfied. I compared it against other torque wrenches and it proved accurate. Excellent value in my opinion.

John C
August 20, 2020

Well, it works as a socket wrench, but the calibration was WAY off. Tried to torque my spark plugs at 35 ft lbs. Set the wrench properly, started turning - it clicked indicating Id hit the torque limit, but the plugs were only at 15 ft lbs when I checked with my shop wrench. Fidgeted with it many times, but nope - didnt properly set. So, its pretty useless.

Hans C
September 12, 2018


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Do these drive torque wrenches come with calibration certificates?

Yes, these wrenches will come with calibration certificates.

Q: What is the country of origin?

These are made in Taiwan.

Q: What is the brand of the wrench? Is it accurate? (Because it have a bad review of accuracy from a customer on your website)

The units are made by STORM and we are not aware of any consistent accuracy issues. Any unit can be sent in for warranty evaluation is a problem is found.

Q: What is the warranty on these Drive Torque Wrenches?

1 year from date of purchase against manufacturer defects only. It does not cover abuse or misuse. If the handle is turned down past zero, the warranty is void.