Gator Grit Paint Rust Remover 4-1/2 " Fits All 4-1/2 " Angle Grinders Disc Sanding Semi-flex 4-1/2in Features Compatibility: Use to Remove Paint or Rust. Use on metal, wood, plastic and fiberglass Abrasive Material: Silicon Carbide Removes rust, corrosion and scale Strips paint and primers USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.