Product Details:

• Fast Grinding 100% Polyester Backed Discs in Six Grits from 60X to 400X in Two Popular Sizes
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  Our CRL Silicon Carbide Sanding Discs come in six inch (152 millimeter) and seven inch (178 millimeter) diameters to fit most popular brands of disc sanders. They have a 100 percent polyester backing that lets you use them wet or dry. For disc sizes or grits other than what we show on our website or in our catalogs, contact our CRL Technical Sales Department at (800) 421-6144, Ext. 777 for pricing and availability; or e-mail CRL Technical Sales.
  
  Two Standard Sizes:
  
• 6 inch (152 millimeter)
• 7 inch (178 millimeter)
  

• Diameter: 7 in (178 mm)
• Center Hole: 7/8 in (22 mm)
• Grit: 320X