Diamond section is widened for no grit loss! Diamond cut-off wheels have better stability when rotating and cutting at high speeds, and are less prone to problems such as diamond shedding and cutting blade deformation. More durable material More cuts! Ability to stay sharp for extended periods of cutting reduces cutting discs wear and replacement frequency, reducing costs. Can handle tougher jobs than the small cutting wheels found in standard rotary tool kits. Wide range of application: diamond cutting wheels are capable of cutting a variety of different hardness and material, with strong versatility, reducing the need to replace different cutting blades due to different materials, improving work efficiency and convenience. Compatibility : It can be mounted on a small 1/4" arbor cutting tool and is recommended to be mounted on the supplied mounting shaft and used on a drill or die grinder