Break stuck screws free using screwdriver bits. Strike the end of the handle with a hammer to turn the bit and tighten or loosen fasteners. Use these tools as an impact wrench without the bit adapter.

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.

These sets include an adjustable torque driver, bits for different drive styles, and a socket adapter. To adjust torque, remove the black vinyl end cap and turn the attached adjustment key. When set torque is reached, the driver slips to disengage and stop turning the fastener, preventing overtightening. Sets come with a calibration certificate that states the product has passed a test for accuracy.

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

Tougher than your average bits, the ones in these sets have a thin, flexible section on the shank that absorbs 30 times the impact force. They are heat treated for hardness and manufactured to tight tolerances, so they won't snap or slip under high stress.

Slide the shaft in or out of the handle to get the exact length you need. These sets can tackle the same variety of jobs as standard screwdriver sets, but they’re less bulky. Press down on the collar to adjust the length or swap shafts. The shafts are also reversible, so you can flip them around for a different size.

Make fine-tuned adjustments on a variety of small screws in electronics, miniature models, and microscopes. These bits have a knurled shank to twist with just your fingertips for pin-point precision. Use them to avoid stripping tiny screws or cracking fragile materials.