Strong and tough substance: Composed of excellent alloy steel, it has high hardness and strong wear resistance after quenching care, and has a long service life Standardized design: strictly following the Mohs taper standard, with good universality and high compatibility with various drilling machines and lathes Safe and consistent: sleeves have a flat tail structure, which can effectively transmit twist and tool detachment, ensuring High accuracy grinding: The inner and outer conical surfaces are processed by full grinding technology, with high concentricity, ensuring tool stability and machining Global variable diameter: As an intermediate sleeve, it can adapt to machine tool spindles and cutting tools with different Mohs taper angles, expanding equipment capabilities, Manufacturer: Hrtyvhin