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: 2.9 lbs.Lifetime Warranty. Image shown may not be actual product but represents product. DIMENSION INCHES A: 2.48 B: 2.81 C: 3 D: 1.02 E: 4.1 Grey Pneumatic 3768D 3/4" Drive x 2-1/8" Deep Length Truck Pinion Locknut Impact Socket