Input Drive Size: 3/8" Drive shape: Square Length: 34mm Type: 6 Point Socket with Self-Tapping Screw and Magnet Output size: 1/2" Product Dimension (Refer Line Drawing Image): D1 Size: 20.3mm D2 Size: 22mm H Size: 6mm L Size: 34mm 3/8 Sq. Dr. Socket 1/2 6 point Length 34mm Self-Tapping screw Magnet