High performance Cr-Mo alloy steel Phospathed finish To be used with machines To be used with safety spring 169921 or 169931 Dynamic-drive profile to protect nuts High density polyethylene box Standards: UNE16507, DIN 3129, ISO 2725 5 units 1/2" impact sockets 167-XX-1, 17 mm, 19 mm, 22 mm, 24 mm, 27 mm 1 units 1/2 impact extension bar 125 mm 169-01-1 1 unit 1/2" impact reducer to 3/8" 169-65-1 1 units 1/2" impact increasing adaptor to 3/4" 169-60-1 1 units 1/2" universal joint 169-25-1