slbrillreStraight shank machine reamers are suitable for reaming mold processing and manual processing, and are used on the processing surface of soft materials such as iron, plastic, wood, copper and aluminum. Straight shank machine reamers straight are widely used for boring processing and are installed in drilling machines, milling machines, etc. We provide 10 kinds of tool holders with different diameters, which can meet the different needs of various greases. These reamers are made of high speed steel and have high hardness. Sharp cutting edge, high cutting ability, high precision and long service life. Specifications: Material: High Speed Steel Shank Diameter: 3/4/5/6/7/8/9/10/11/12mm Accuracy: H7 Quantity: 10pcs Package Includes: 10pcs x slbrillre Machine Reamers