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.

Heat treated for hardness, the bits in these sets won't crack or deform under high torque. They are manufactured to tight tolerances to prevent slipping.

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.

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.