A JIS 10-piece bit set with 1/4" hex shanks & quick chuck ends to allow fast secure connection to 1/4" hex drivers. Suitable for use with cordless screwdrivers fitted with a quick chuck, cordless drills and bit drivers. JIS (Japanese Industrial Standard) screws as used on Japanese industrial standard fittings found on Japanese motorcycles and equipment (such as Honda, Shimano bike components, Tamiya radio-controlled cars etc).