Designed for use on Japanese industrial Standard (JIS) fittings found on Japanese motorcycles and equipment where using standard PH bits would cause damage. Sizes: JIS PH2 x 36mm, JIS PH2 x 80mm, JIS PH3 x 36mm, JIS PH3 x 80mm. Designed for use on Japanese industrial standard fittings found on Japanese motorcycles and equipment where using standard PH bits would cause damage. These special bits can be used with the following Laser impact drivers: Laser Part Nos. 5735, 0596, 0303 & 3456. Bits manufactured from S2 material with zinc phosphate finish. Due to the nature of the application, these bits are considered consumable.