1、Universal Shank: This reamer has universal shank type, which is clamping and tightening, clean surface, and high grinding accuracy 2、9SiCr Material: Made of high quality 9SiCr material, integrally forged, the body is strong, wear resistant and durable, and is smoothly processed 3、Full Automatic Refining Process: Adopts fully automatic refining process, which can pass or stop, and meet the processing technical requirements 4、Wide Applications: Widely used for reaming metal materials such as steel, die steel, aluminum alloy, cast iron, copper, galvanized pipe, etc. 5、Long Service Life: Long service life, used for light cutting, repair work, etc., to provide hardness and wear resistance