Features TIGHT AND ACCURATE: Universal shank type ensures tight clamping, smooth , and high grinding accuracy, providing precise and reliable performance in various applications. DURABLE 9SICR MATERIAL: Crafted from high-quality 9SiCr material, the cutter body is firm, wear-resistant, and durable, offering long-lasting and reliable use in machining operations. FLEXIBLE ADJUSTMENT: Fully automatic refining process allows for easy adjustment to meet specific technical requirements, ensuring flexibility and precision in processing tasks. FOR VARIOUS METAL MATERIALS: Widely applicable to steel, die steel, aluminum alloy, cast iron, copper, galvanized pipe, and other metal materials, offering versatility and adaptability in machining different materials. 21？23MM ADJUSTABLE RANGE: Equipped with a storage box for easy storage and portability, featuring 6 flutes and an adjustable range from 21-23mm, providing convenience and flexibility in reaming operations. Specification: Item Type: Adjustable Reamer Product Material: 9SiCr Adjustable Range: Approx. 21 ~ 23mm / 0.83 ~ 0.91in Cutting Diameter: Approx. 21.5mm / 0.85in Tool Slot Length: Approx. 69mm / 2.72in Number of Flutes: 6 Flutes Application Range: Widely used in steel, die steel, aluminum alloy, cast iron, copper, galvanized pipe and other metal materials Package List: 1 x Adjustable Reamer 1 x Storage Box Package List 1 x Adjustable Reamer 1 x Storage Box