Execution MM Inches ISO Tolerance Cold Drawn 4.00 -40.00 3/16"- 1.1/2" h11 Polished and Ground 5.00 -36.00 3/16"-1.1/2" h11 All the above Products are available in Alloy Steel, Stainless Austenitic Steel, Ferritic Steel as well as Martenisitic Steel Grades.