Sizes are hard stamped on each wrench; Part number and Cornwell USA are laser etched.  12 Point.  Industrial Finish.  Zero Offset.  Overall Length:  12-3/4".  Head Thickness Large End:  3/8".  Head Thickness Small End:  3/8".  Head Diameter Large End:  27/32".  Head Diameter Small End:  3/4".

Popular for oil drain plugs and other applications for import vehicles.Shiny Black Oxide Finish.