Input Drive Size: 1/2" Drive Shape: Square Length: 77mm Type: 6 Point Deep Socket Output Size: 27mm Opening: 6pt Product Dimension (Refer Line Drawing Image): D1 Size: 36.5mm D2 Size: 33mm H1 Size: 28mm H2 Size: 56mm L Size: 77mm 1/2 Sq. Dr. Socket 27mm 6 point Length 77mm