1、With cutting-edge, the chucking machine reamer set have high cutting ability, high accuracy and neat cutting. 2、Processed surface of iron, steel, plastic, wood, copper, aluminum and other metal materials. 3、These straight shank reamers are made of high-speed steel, which is durable and not easy to rust. 4、Widely used for bore machining, installed in drilling machine, milling machine, etc. 5、Applicable for reaming to mould processing and handicraft processing. Features: Sharp cutting-edge. Processed surface of iron, steel, plastic, wood, copper, aluminum and other metal materials. Durable and high quality. Widely used for bore machining. Specification: Shank Diameter: 7mm Resolution: H7 Material: HSS Steel Note: Please make sure the diameter before purchasing. Package included: 1x Machine Reamer