High quality chro-moly alloy steel.Extra-thin wall deep length impact sockets for removing/installing transmission and differential and yoke locknuts on a wide variety of trucks. Weight: 3.3 lbs.Lifetime Warranty. Image shown may not be actual product but represents product. DIMENSION INCHES A: 2.6 B: 2.99 C: 3 D: 1.02 E: 4.1 Grey Pneumatic 3772D 3/4" Drive x 2-1/4" Deep Length Truck Pinion Locknut Impact Socket