Attach a socket to the 1/4" square drive tip to turn hex nuts and hex head screws. The dial on these drivers shows how torque measurements change as you turn. Use to fasten to a specific torque, determine fastener torque specifications, and identify the torque required to loosen tightened fasteners. To use with screwdriver bits, add a bit adapter. Drivers come with a calibration certificate that is traceable to NIST and includes the test measurements that confirm accuracy.

Drivers with memory pointer indicate the maximum torque reached.

Note: The accuracy ratings do not apply to the lower 20% of the torque range.

A dial shows how torque measurements change as you turn the driver. Use these tools to fasten to a specific torque, determine fastener torque specifications, and identify the torque required to loosen tightened fasteners.

Calibration certificate traceable to NIST states the product has passed a test for accuracy.

Calibration certificate with test data traceable to NIST includes the test measurements that confirm accuracy.

Reach the same torque every time with factory-set screwdrivers that slip to disengage and stop turning the fastener when the set torque is reached, preventing overtightening. The torque setting cannot be adjusted. Use with screwdriver bits (not included).

Styles A and C come with five colored sleeves you can use to color-code tools for quick identification.

Style B come in a variety of colors for quick identification.

Calibration certificate with test data traceable to NIST includes the test measurements that confirm accuracy.

Calibration certificate traceable to NIST states the product has passed a test for accuracy.

For technical drawings and 3-D models, click on a part number.

Also known as impact-free torque screwdrivers, these tools minimize reaction when the set torque is reached. They reduce user fatigue when installing many fasteners in a short period of time. Screwdrivers are factory set and slip to disengage and stop turning the fastener when the set torque is reached, preventing overtightening. The torque setting cannot be adjusted. Drivers come in a variety of colors for quick identification. They include a calibration certificate that is traceable to NIST and includes the test measurements that confirm accuracy. Use with screwdriver bits (not included).

When working in tight spaces, these short drivers fit where others can't. They are factory set to reach the same torque every time and cannot be adjusted. Drivers slip to disengage and stop turning the fastener when the set torque is reached, preventing overtightening. They come in a variety of colors for quick identification. Drivers include a calibration certificate traceable to NIST that states the product has passed a test for accuracy. Use with screwdriver bits (not included).

For technical drawings and 3-D models, click on a part number.

Finger-tighten the three-jaw chuck onto a torque wrench or screwdriver, then twist either the gauge or tool to check the tool’s accuracy. A pointer on the dial shows torque as it’s measured—no batteries required. Bring these pocket-sized testers anywhere your tools are.

All testers come with a calibration certificate with test data traceable to either NIST or JIS, so they meet standards for accuracy. For the most accurate performance, the maximum torque you're applying should fall near the middle of the tester's torque range. Use with hand tools only.

Testers with memory pointer show the maximum torque reached.

For technical drawings and 3-D models, click on a part number.

Measure the torque output of torque wrenches, screwdrivers, and other hand tools to ensure they deliver the right amount of torque—and check your results on a digital screen. Cycle through four units of measure on the screen, then set it to display real-time or maximum torque. These testers have a keyless chuck that's similar to a standard drill chuck: insert the tool you're measuring and tighten the chuck by hand. They can also be used to measure the torque consistency of small rotating parts, such as motors, potentiometers, and encoders.

Note: For the most accurate performance, the maximum torque you apply should fall near the middle of the tester’s torque range.

Testers with calibration certificate with test data traceable to NIST include the test measurements that confirm accuracy.

The tester's memory keeps track of up to 999 different measurements. Use the USB cable and software download link (sold separately) to transmit, store, and analyze test data on a computer. The software stores time, date, and torque measurement values that you can import into Microsoft Excel.

To use the tester on external power, add an AC adapter (sold separately) and attach it with the USB cable (sold separately with the software).

For large and oddly shaped items, use a testing fixture (sold separately). Testing fixtures fit inside the tester's chuck and have four clamping pins that allow you to hold objects as wide as 2 1/4".

For handheld use, the display fits inside the back of the tester. To use the tester on a flat surface, remove the display from the back of the tester. For additional stability, mount the tester onto a testing stand (sold separately). Testing stands have four pins that fit inside the tester to anchor it, a handle for leverage, and mounting holes for permanently securing the stand.

Monitor torque as you apply it—these testers mount between your torque tool and your fastener. Engage the fastener to track both torque and the angle of rotation for each crank of your tool (snug torque) before you've reached the final torque. This gives you a better idea if fasteners are consistently tightened than measuring torque alone. These testers are often used with nutrunners and click-style torque wrenches in the automotive and aerospace industries. Store up to 999 maximum torque (peak) and rotation values, including the date and time of each test, or transfer to your computer to view in an Excel file. CE marked, they meet European safety standards.

For the most accurate readings, the maximum torque you're applying should fall near the middle of the tester's torque range. They are not for use with impact tools.

Testers with a USB connection transfer data directly to your computer with the included cord. These testers last up to 10 hours on a single charge.

Testers with a Bluetooth connection wirelessly transmit data to a computer as you measure. You can also remotely set snug torque, or when these testers starting measuring the torque applied with each rotation. They last up to 8 hours on a single charge with Bluetooth on and 10 hours with it off.

For technical drawings and 3-D models, click on a part number.