The Shell Threaded Reamer is a precision tool used primarily in the manufacturing and machining industries. Reamers play a crucial role in finishing holes to a precise diameter and enhancing their surface finish. This specific model, measuring .277 inches in diameter with a length of 2-1/2 inches, is designed with a .263 inch diameter cutting edge, making it suitable for specific applications in machining and tooling. Historically, reamers were developed to improve the quality of drilled holes, allowing machinists to achieve tighter tolerances and better fitting components. The introduction of threaded reamers allowed for easier alignment and stability during machining processes, thus enhancing overall productivity. This particular threaded reamer is versatile, primarily utilized in applications such as firearm manufacturing, precision engineering, and metalworking where exact dimensions are critical. Its unique features include a threaded design for compatibility with various mounting systems and materials designed to withstand wear and provide a clean finish. Reamers like this one are well-regarded for their durability and efficiency in producing holes that require greater accuracy than standard drilling methods.

Diameter: .277 inch Cutting Edge Diameter: .263 inch Length: 2-1/2 inches Type: Threaded Reamer Material: High-speed steel (assumed) Application: Precision machining and tooling