Features Firm and Accurate: Adjustable hand reamer with universal shaft type, widely used, with firm clamping, smooth surface and high grinding accuracy. Tool slot length: approx. 69 mm / 2.72 inches 9SICR Material Cutting Tools: Hand reamer is adopt 9SiCr overall forging of good quality, the cutter body is firm, wear-resistant and sturdy, ensuring smooth processing Flexible Adjustment: Adjustable reamer is adopted a fully automatic refining process, which can be passed or stopped to meet the technical requirements of processing, very flexible For Various Metal Materials: The adjustable reamer is commonly used in steel, die steel, aluminum alloys, cast iron, copper, galvanized pipes and other metal materials 21-23 mm Adjustable Range: There are a total of 6 cutting edges on the reamer, adjustable range of 21-23 mm. Equipped with a storage box, easy to store and carry Specification: Item Type: Adjustable Reamer Product material: 9SiCr Adjustable range: approx. 21 - 23 mm / 0.83 - 0.91 inches. Cutting diameter: approx. 21.5 mm / 0.85 inches. Tool slot length: approx. 69 mm / 2.72 inches. Number of flutes: 6 flutes Scope of application: widely used in steel, drop steel, aluminum alloys, cast iron, copper, galvanized pipes and other metal materials Package list: 1 x adjustable reamer. 1 x storage box Package List 1 x Adjustable Reamer 1 x Storage Box