How to Choose a Torque Wrench

Torque wrenches help apply a specified tightening force. Choose one around the torque range you actually need and use it according to the manufacturer's instructions.

What matters

• Pick a range that puts your normal jobs comfortably inside the wrench's working range.
• Choose the drive size that matches your sockets and fasteners.
• Follow the manufacturer's storage and calibration guidance.
• Use the torque specification supplied for the specific fastener or equipment.

Choose a useful torque range

Do not buy a wrench just because its maximum number is high. A wrench is easiest to use accurately when the required torque sits comfortably within its rated range. A 3/8-inch wrench is a practical size for many smaller fasteners, while a 1/2-inch wrench commonly covers wheel lugs and heavier maintenance work.

Use a click wrench correctly

Set the specified torque, pull smoothly at the handle grip, and stop as soon as the wrench clicks. Do not use a click-type torque wrench to loosen fasteners, and do not keep pulling after the click. Return an adjustable click wrench to the maker's recommended storage setting when finished.

Torque wrench FAQ

Should I use extensions? A straight extension normally does not change the torque setting, but a crowfoot or offset adapter can. Follow the tool maker's instructions or calculate the corrected setting before use.

How often should it be calibrated? Follow the manufacturer's interval and calibrate sooner if the wrench is dropped, overloaded, or used for critical work.

Before you buy

Think about the actual job first: fastener size, access, torque, environment, frequency of use, and compatibility with the tool you already own. A product that looks impressive on a product page can still be the wrong tool for the job.