Features 1、UNIVERSAL AND ACCURATE: Come with universal shank type, widely used, possess tight clamping, smooth surface, and high grinding accuracy 2、DURABLE 9SICR MATERIAL: Using good quality 9SiCr overall forging, the cutter body is firm, wear resistant and durable, and adopt smooth processing 3、FLEXIBLE ADJUSTMENT: Fully automatic refining process is adopted, which can be passed or stopped to meet the technical requirements of processing 4、FOR VARIOUS METAL MATERIALS: Widely used in steel, die steel, aluminum alloy, cast iron, copper, galvanized pipe and other metal materials 5、19-21MM ADJUSTABLE RANGE: Equipped with a storage box, easy to store and carry. There are a total of 6 flutes on the reamer, adjustable range from 19-21mm Specification Item Type: Adjustable Reamer Product Material: 9SiCr Adjustable Range: Approx. 19 ~ 21mm / 0.75 ~ 0.83in Blade Length: Approx. 64mm / 2.52in 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