Field Tool Supply's 3-5/8 Shell Reamer is crafted from high-speed steel (HSS) for exceptional cutting performance. This reamer is specifically designed to enlarge holes with a diameter of 3-5/8 inches, providing precision and a smooth finish. Ideal for use in various machining applications, it is compatible with a wide range of materials, including metals and composites. The tool's robust construction ensures durability and compliance with industry standards, making it a reliable choice for professionals. Enhance your machining capabilities with this high-quality shell reamer, perfect for achieving accurate hole sizes.