Automotive · Head-to-head
TEKTON TRQ52402 1/2 Inch Drive Micrometer Torque Wrench vs GEARWRENCH 85176CERT 3/8 Inch Drive 120XP Certified Micrometer Torque Wrench
Which should you buy? Our verdict on both, pulled from our full The Best Torque Wrenches: 4 Compared (and One to Skip) comparison.
The TEKTON is the one to buy first: half inch drive for the wheel and suspension work most people bought a torque wrench for, calibrated to the stricter ISO standard in both directions, with a serialized certificate and a recertification path. The GEARWRENCH is the three eighths drive companion that reaches down to 10 ft-lb for engine and brake fasteners, with a NIST traceable certificate of its own.

TEKTON TRQ52402 1/2 Inch Drive Micrometer Torque Wrench
Buy itCalibrated to the stricter ISO standard in both directions, with a serialized certificate in the case and a factory recertification path.
- Rated within plus or minus 3 percent clockwise and counterclockwise, not clockwise only
- Calibrated to ISO 6789-1:2017, which tests the lowest marked value on the scale and takes five readings per set point
- Serialized certificate of calibration in the box, listing the actual readings for your wrench
- 90 tooth head with a 4 degree swing arc for tight access around brakes and suspension
- Range starts at 40 ft-lb, so nothing lighter than suspension and wheel work is on the scale
- You still need a three eighths drive wrench for engine bay fasteners

GEARWRENCH 85176CERT 3/8 Inch Drive 120XP Certified Micrometer Torque Wrench
Buy itThe three eighths drive companion for engine and brake work, sold with a NIST traceable certificate and a 3 degree ratcheting arc.
- NIST traceable certificate of calibration included, with serial number, date and actual readings
- 10 to 100 ft-lb range covers the engine bay and brake fasteners a half inch wrench cannot reach
- 120XP head gives a 3 degree ratcheting arc, about as tight as a mechanical ratchet gets
- Enclosed ratchet head resists grit, the usual failure point on a cabinet dwelling wrench
- Accuracy is stated for the clockwise direction and the upper 80 percent of capacity only
- Calibration portion of the warranty runs 90 days while parts coverage runs a year
- The certified version costs meaningfully more than the otherwise identical uncertified model
Side by side
| TEKTON TRQ52402 1/2 Inch Drive Micrometer Torque Wrench | GEARWRENCH 85176CERT 3/8 Inch Drive 120XP Certified Micrometer Torque Wrench | |
|---|---|---|
| Our verdict | Buy | Buy |
| Best for | The first torque wrench for anyone who rotates their own tires, changes brakes, or works on suspension. | Under hood work, brake jobs and anyone who wants a documented certificate rather than a generic quality card. |
| Price tier | $$ · mid-range | $$$ · premium |
The bottom line
Our overall pick is the TEKTON TRQ52402 1/2 Inch Drive Micrometer Torque Wrench - Calibrated to the stricter ISO standard in both directions, with a serialized certificate in the case and a factory recertification path. Choose the GEARWRENCH 85176CERT 3/8 Inch Drive 120XP Certified Micrometer Torque Wrench instead if under hood work, brake jobs and anyone who wants a documented certificate rather than a generic quality card.
Want the full picture, including the other options we compared and the popular one we'd skip? Read the complete The Best Torque Wrenches: 4 Compared (and One to Skip).