JIS (Japanese Industrial Standard) 1/2" Manual Impact Driver 8-Piece Set Made in Japan Cross Bits JIS 1 2 3, Flat 1 1.6 1.8, 8mm Bit Adapter, Plastic Case 0159-112Contains one (1) Heavy Duty Reversible Impact Driver with 1 2" socket head and 8mm Bit Adapter and JIS (Japanese Industrial Standard) Impact Bits Bit Size: Cross JIS #1, JIS #2, JIS #3. Flat 1. 0, 1. 6, 1. 8 Perfect for vintage and modern Japanese motorcycles, ATVs, and Scooters. JIS screws are often marked by a single dimple pressed into the screw head. This tool is perfect for tackling stuck, rusted, and frozen screws on a wide range of Japanese