Input Drive Size: 3/4" Drive Shape: Square Length: 90mm Type: 12 Point Deep Socket Output Size: 18mm Opening: 12pt Product Dimension (Refer Line Drawing Image): D1 Size: 27mm D2 Size: 34mm H1 Size: 19mm H2 Size: 64mm L Size: 90mm 3/4 Sq. Dr. Socket 18mm 12 point Length 90mm