The reamer .2155" x .1990" diameter x 5" long is a precision tool widely used in the machining and manufacturing industries. Reamers are utilized to produce accurate and smooth holes in various materials, ensuring that the holes meet the specified diameters. The origin of reamers dates back to ancient metalworking practices, where craftsmen used simple tools to refine and enlarge existing holes. As technology advanced, reamers evolved into highly specialized tools made from high-speed steel or carbide, designed for enhanced durability and performance. This specific reamer offers a unique combination of diameter and length, making it suitable for a range of applications including: - Fine-tuning holes for mechanical assemblies. - Achieving precise fits for fasteners or pins in intricate designs. - Enhancing surface finish of holes to reduce friction and wear in moving parts. The .2155" and .1990" diameters indicate its capability to ream both metric and imperial sizes, making it versatile for different engineering needs. Additionally, the 5" length allows access to deeper holes where standard tools may not suffice. Its unbranded nature often appeals to budget-conscious professionals seeking functional yet cost-effective solutions in their projects.

Diameter: .2155" Secondary Diameter: .1990" Length: 5" Material: High-speed steel or carbide (specific material not indicated)