Precision Phillips Screwdrivers

Japanese Industrial Standard (JIS) screws do not provide a cam-out option and have 90-degree corners. Phillips (PH) screws are designed to make a Phillips screwdriver cam out if too much torque is applied. This prevents damage to screws and screwdrivers or bits.
Even though there is a difference between JIS and PH screws, an official iFixit PH000 driver should not damage a JIS000 screw because we manufacture our Phillips bits to be cross-compatible with JIS screws.