C1045 TGP Turned, Ground & Polished Round, is a medium carbon cold drawn steel round that has been ground and polished to a high degree of concentricity, surface perfection, straightness, and overall accuracy. Use C1045 TGP Precision Round when a higher degree of added strength, dimensional accuracy and straightness are required. Typical Diameter Tolerance = plus 0" / minus .001". Metals Depot stocks hundreds of sizes and lengths of 1045 Turn Ground and Polished Steel Shafting that you can buy online in ready to ship precut or mill lengths or you can order just what you need custom Cut to Size in small or large quantity at wholesale prices.