CNC Stainless Steel Bearing Steel Needle Roller Positioning Pin Cylindrical Dowel Pin. Dual Material Options: Available in Bearing Steel (Gcr15/SUJ2) and Stainless Steel for diverse applications. High Hardness & Durability: Quenched to HRC 58-64, offering rust-proof, wear-resistant, and durable performance. Customizable Dimensions: Diameter ranges from 1-60mm with custom length options available upon request. Precision Tolerances: ID tolerance -0.01 to 0mm and length tolerance -0.2 to 0.35mm for high accuracy. Versatile Industrial Use: Ideal for CNC machines, molds, measuring instruments, and factory automation equipment. OEM/ODM Services: Full OEM and ODM services available with 1 R&D engineer support. Polished Surface Finish: Features a smooth, polished surface ensuring high strength and rigidity. Flexible Lead Time: Off-season delivery within 15 workdays; peak season within one month.