150mm x 1/2" Phenolic Star Cab Grooved Polishing Grinding Laps – Precision Gemstone & Cabochon Polishing

The 150mm x 1/2" Phenolic Star Cab Grooved Polishing Grinding Laps are precision-engineered for lapidary professionals and hobbyists, delivering efficient, consistent, and high-quality polishing for cabochons and hard gemstones. The star cab grooved design enhances water flow and debris removal, reducing heat buildup during polishing and ensuring smooth, scratch-free finishes. Made from durable phenolic material, these laps maintain flatness and long-lasting performance, even under heavy use. Compatible with standard 1/2" arbor shafts, they are perfect for cabochon shaping, gemstone grinding, and pre-polishing of sapphire, ruby, garnet, and other hard stones. The grooved surface allows for faster material removal without sacrificing control, making these laps ideal for both wet and light-lubrication lapidary polishing applications.