For screw tightening work requiring torque management!

*Prevents overtightening beyond specified torque during hand tightening or re-tightening.
*Slide sleeve design keeps bits from falling out.
*Tighten screw until 4 clicks — tightening complete.
*Usable up to 10,000 times.
*5-piece set covering M3 to M6. Comes with storage case.Caution:
*This product is for screw tightening only. Do not use for loosening screws.
*Repair and calibration certificates are not supported.
*Compatible with 6.35mm hex bit-replaceable screwdrivers and electric assist drivers such as electric drill balls.
*For electric drill drivers, use at 7.2V or lower with a rotation speed of 250rpm or less.
*Do not use with electric drill drivers exceeding 7.2V or electric impact drivers.
*Bits with a ball groove of 9mm or total length of 35mm or less cannot be used.