M2 Tool Steel is a tungsten-molybdenum high-speed steel. Decarb Free Rounds are produced oversize on diameter to finish to listed size.Material: Tool SteelShape: Round RodAlloy: M2Temper: AnnealedDiameter: 0.171 (11/64 inch)Length: 36 inches (3 Pack)Finish: Decarb FreeQuantity in Package: 3 piece(s)Specifications: ASTM 681, AISI M2Tolerances: Diameter: (+/-0.001) | Length: (-0/+0.999)