General description This 55mm and 30mm 1/2''D impact socket is ideal for use on Ducati motorcycles. This low profile socket is designed to be used with an impact gun to remove both front and rear wheel nuts that have been over tightened or are partially seized. Technical specifications Size: 55mm Bi-Hex and 30mm single Hex Drive: 1/2''D Material: Chrome molybdenum Usage Designed for use on Ducati Super Bike 1098, 1198, 1199, Panigale, Street Fighter 1098, Multistrada 1200 & Diavel. Effective for removing over tightened or partially seized front and rear wheel nuts.