The JIS screwdrivers feature a slightly deeper, more angled cross shape, providing a better, more secure fit. Set includes JIS #1 x 3 in. (#65881), JIS #2 x 4 in. (#65882), JIS #3 x 6 in. For use on Japanese Industrial Standard (JIS) fasteners found on cars, trucks, motorcycles, ATVs and watercrafts made in Japan.