3/8" Drive x 12mm Hex Drive Impact Socket GRE1912M Electric and Cordless Tools Displays Threaded holes are 5/8" -

Threaded holes are 5/8" - 18

BA04: 3 Tab adapter with Expandable O-Ring for GM

Self priming

the second number is the distance between the threads in millimeters

Jaw capacity: 3-1/8"

3/8" Drive x 12mm Hex Drive Impact Socket GRE1912M Electric and Cordless Tools Displays Threaded holes are 5/8" -3 8" Drive x 12mm Hex Drive Impact Socket Features and Benefits Made of high quality steel (chrome molybdenum) Engineered specifically for use with impact tools, using the most up to date industrial specifications Made to transfer the pressure from the thinnest part of the socket wall toward the thicker section, resulting in increased strength One piece impact hex driver Lifetime Warranty Each impact socket features high torque drives. This feature