JIS Screwdrivers

JIS Screwdrivers for Motorcycles JIS screws: Myth or Miracle? That is often the question when it comes to discussing JIS or Japanese Industrial Standard screwdrivers. I’ve been told there is no difference between a standard Phillips (or “cross-head”) screwdriver and a JIS screwdriver, as long as the sizes are equal. I wasn’t so sure. And …