• Conduct a test run for at least one minute before starting operation, and at least than three minutes after changing the brush. Check for abnormalities such as vibrations, looseness of the brush axis joint, or looseness of the adjusting screw that controlse the projection of the Fine Alumina Fiber rods.
  
  
• Even if there are no abnormalities during the test run, if you notice anything unusual such as vibration during usage, please stop the operation immediately. Breakage, deformation, or damage to the brush may be hazardous.

• Please use under a maximum of 12,000RPM. Usage over the maximam RPM is dangerous because it may result in tool breakage.

• Usage with an excessive load (cutting depth) may not only give less than optimal results, but also may lead to breakage and scattering of Fine Alumina Fiber rods. This is especially prone to occur when processing edges and uneven areas, therefore, in these cases it is necessary to process with low enough rpm and a lighter load.

Operator Safety Measures

［Protection］

• Always wear protective glasses, gloves, and a masks when working. Also, wear long sleeves and close all cuffs and hems of your outerwear so that your skin is not exposed.

• Grinding powder and burrs may scatter within an area around the work as the brush revolves. Please stay clear of this area. When using on high-precision processing equipment, the abrasive powder may adversely affect the sliding parts, so please be sure to collect any dust and keep the equipment clean.

• The area around your work is hazardous due to flying pieces of fiber rods from the brush and grinding powder. Please enclose your work area to prevent other people from entering, or have the surrounding people wear protection as well.