The assorted screwdrivers in these sets have an insulated handle and shaft that protect against shock from accidental contact with live electrical circuits. They are tested to 1,000 volts to meet IEC, EN, or ASTM standards. Drivers have a contoured ultra-grip handle that provides comfort and the best possible grip for achieving maximum torque.

Square drivers are also known as Robertson screwdrivers.

Bits have a different tip at each end and snap into the shaft. A ball detent holds the bit in place. To use as nutdriver, remove the bit and turn fasteners with the shaft, which is also reversible.

Ultra-grip drivers have a multicomponent handle that provides comfort and the best possible grip for achieving maximum torque. Those with a voltage detector safely test for AC voltage without contacting live wires. Light and sound indicators alert you when over 50 volts AC is detected. The detector is attached to the tool’s handle; remove it from the handle to use it on its own. Bits turn eight screw sizes and the shaft three external hex sizes.

Cushion-grip drivers offer comfort and some slip resistance. Bits turn eight screw sizes and the shaft three external hex sizes.

A ratchet mechanism turns fasteners more quickly than a standard driver. Insert a bit into the shaft and a magnet holds it in place.

Ultra-grip drivers have a multicomponent handle that provides comfort and the best possible grip for achieving maximum torque.

Choose a handle based on torque and change shafts to use a different size or drive style. Handles are factory set to ensure you reach the same torque every time. They signal with an audible click when the set torque is reached. The torque setting cannot be adjusted. Handles have a contoured ulta grip for comfort. They come with a calibration certificate that is traceable to DIN and includes the test measurements that confirm accuracy.

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.

Drivers with 1/4" female square drive in handle allow you to attach a T-handle or ratchet to the end for extra leverage when applying high torque.

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

Attach a socket to the 1/4" square drive tip to turn hex nuts and hex head screws. Turn the collar to adjust torque. When set torque is reached, these drivers signal with an audible click. Drivers come with a calibration certificate that is traceable to NIST and includes the test measurements that confirm accuracy.

Note: Accuracy ratings apply to the entire torque range.