A reamer is a precision cutting tool used to enlarge and refine pre-drilled holes to achieve an accurate diameter and smooth surface finish. It removes minimal material, ensuring high precision in metalworking, toolmaking, and manufacturing applications. Reamers are available in various types, including hand reamers, machine reamers, chucking reamers, adjustable reamers, and tapered reamers, each designed for specific machining needs. They are commonly made from high-speed steel, carbide, cobalt, or diamond-coated materials to enhance durability and performance. Used in industries such as automotive, aerospace, medical, and tool and die manufacturing, reamers help achieve tight tolerances and improve hole quality. Proper use, including pre-drilling undersized holes, maintaining optimal cutting speeds, using lubrication, and ensuring precise alignment, enhances tool longevity and machining accuracy.
