Ko-Ken 4440M-20 Universal Socket 20 MM 6 Point 71 MM 1/2 Sq. DriveGeneral Information Brand Ko Ken Tools Part Number 4440M 20 Product Type Socket Adapter Packaging Bulk Country of Origin Japan UPC 4991644082124 California Residents Proposition 65 Warning Physical Characteristics Length 71 mm Weight 0. 17 kg 0. 38 lb Details Type 6 Point Size 20 mm Features Drive Shape: Square Input Drive Size: 1 2 Inch Output Size: 20 mm Length: 71 mm Made In Japan Drive Connector Size 1 2 Inch