Torque Wrench Calibration in Oxnard, CA

QSI calibrates torque wrenches, torque drivers, torque watches, and torque analyzers at our ISO/IEC 17025 accredited calibration laboratory in Oxnard, California. We calibrate torque wrenches and drivers from 5 lbf·in to 250 lbf·ft (about 0.6 to 339 N·m). Ship your tools to our lab from anywhere in the U.S., or schedule on-site calibration in Ventura County, Santa Barbara County, the Santa Clarita Valley, and Los Angeles.

Torque Equipment We Calibrate

• Torque Wrenches

• Torque Drivers

• Torque Watches

• Torque Analyzers

Don't see your torque equipment listed? Contact us for a custom quote.

Torque Wrench and Torque Driver Calibration

A torque wrench is only as good as the spring or sensor inside it, and those wear with every use. Click-type wrenches lose accuracy as their springs fatigue, especially when stored at a high setting. Drops, overloading, and using a torque wrench to break loose stuck fasteners can all shift readings. Since a wrench can still click reliably while applying the wrong torque, there's no way to spot drift without testing it.

Calibration measures the torque your wrench or driver actually applies at points across its range, typically at 20%, 60%, and 100% of full scale, and documents how closely each reading matches its setting.

Torque Watches and Torque Analyzers

Torque watches are dial instruments for measuring torque directly, often used to check closure torque on caps and containers or to audit fasteners that are already tightened. Torque analyzers are the testers many shops use to check their own wrenches and drivers between calibrations. If an analyzer reads incorrectly, every tool checked against it inherits the error, so these instruments need regular calibration of their own.

Frequently Asked Questions