Clutch nut wrench. Sizes: 1.3 inches (32 mm), 1.3 inches (34 mm), 1.5 inches (39 mm), 1.6 inches (41 mm), 1.8 inches (46 mm), including Honda, Yamaha, Suzuki, Moped to Big Scooters, this scooter is compatible with almost all of our products. A special tool you need to replace clutch springs or replace clutch shoes. ★ A very convenient product! ! !