Hozan K-140/141/142 Polishing Pad Abrasive GrainFeatures Available in Three Grit Sizes: #60 for heavy material removal, #120 for medium refinement, and #320 for fine polishing, ensuring progressive smoothing. Durable and Flexible Construction: Made from NBR with a polishing agent, providing flexibility and long lasting performance on various metal surfaces. Effective Rust and Contaminant Removal: Prevents clogging while efficiently removing rust, oxidation, and dirt without damaging the base