California Proposition 65: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm. Tool Steel Rod, Material Tool Steel, Material Grade O1, Overall Length 36 in, Heat Treatable Heat Treatable, Heat Treatment Oil-Hardened, Mechanical Finish Precision Ground, Outside Diameter 31/64 in, Outside Diameter Tolerance +/- 0.0005 in, Yield Strength 55, 000 psi, Fabrication Hot Rolled, Rockwell Hardness 100 HRB, Brinell Hardness 241 BHN, Tensile Strength 95, 000 psi, Machinability 90 Percent, Length Tolerance + 0.125 in/0 in, Includes Material Certificate Material Test Report. This item has been restricted from sale in the following state (s): []