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: 4.6 lbs.Lifetime Warranty. Image shown may not be actual product but represents product. DIMENSION INCHES A:     3.07 B:     3.6 C:     3 D:     1.02 E:     4.1 Grey Pneumatic 3788D 3/4" Drive x 2-3/4" Deep Length Truck Pinion Locknut Impact Socket