This item features: -Premium 100% Zirconia offers maximum cutting capacity strong edge stability cool cutting with light pressure and long life. -Recommended for aggressive use and heavy duty applications. -Excellent on carbon and stainless steel. -Abrasive Material: Zirconia Aluminum. -Used With: Right Angle Grinder/Sander. -Quantity: 10 per carton. Model Code Model Description AADia.:4 1/2 in Tool Shape:Type 27 Arbor Thread - TPI or Pitch:5/8 in - 11 Grit:24 Speed:13300 rpm Applications:Deburring Deflashing Rust Removal Snagging Applicable Materials:Non-Ferrous Metals Plastics Woods ABDia.:4 1/2 in Tool Shape:Type 29 Arbor Thread - TPI or Pitch:5/8 in - 11 Grit:24 Speed:13300 rpm Applications:Deburring Deflashing Rust Removal Snagging Applicable Materials:Non-Ferrous Metals Plastics Woods ACDia.:4 in Tool Shape:Type 27 Arbor Thread - TPI or Pitch:3/8 in - 24 Grit:36 Speed:15300 rpm Applications:Deburring Deflashing Rust Removal Snagging Ap