Alpha Katana 4-1/2" Dry Diamond Blade Can Be Used Wet or Dry Tile Installer's Choice for Dry Cutting Best Dry Cutting Tile Blade with Minimal Chipping Hybrid Dry Saw Blade for All Tiles. Fits on Most Popular High-Speed Angle Grinders. DPT115 4-1/2" 1.4mm 13,200 7/8", 20mm Stone Cutter/Angle Grinder