Feature:1. This chucking reamer is made of highspeed steel and has high hardness and durability.2. Comes with incisive cutting edge, high cutting ability, high accurate and long service life.3. With small shank diameter of 10mm/0.4in, and the taper value is 1:50, convenience to use.4. Simple installation, and there is no need to waste your times, easy to use.5. This reamer is suitable for reaming mold processing and handcraft processing.Specification:Item Type: Machine ReamerMaterial: High speed steelReaming Shape: ConicalTaper Value: 1: 50Small Head Blade Diameter: Approx. 10mm / 0.4in.Package List:1 x Reamer Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.