Premium Grit Variety Pack – Includes 3 belts each of 400, 600, 800, and 1000 grits (12 total) for versatile sharpening and polishing, ideal for knives, tools, and detailed metal/stone work. Waterproof & Durable Design – Made with heavy-duty Y-weight polyester backing for tear resistance. Can be used wet or dry, reducing heat buildup and extending belt life. High-Performance Silicon Carbide – Closed-coat abrasive grains excel on hard materials like glass, stone, granite, composites, plastics, and light metals, offering fast cutting and anti-clogging efficiency. Precision Engineered for Longevity – Features a bi-directional tape joint and resin-over-resin bonding for seamless operation. Stearate coating minimizes clogging for consistent performance. Heavy-Duty Professional Use – Reinforced backing and robust construction withstand high-speed sharpening and sanding, making these belts reliable for workshops, kitchens, and industrial applications. Sackorange 12 Pack 2 x 42 Inch High Performance Silicon Carbide Sanding Belts - 3 Pcs Each of 400 600 800 and 1000 Grits Premium Knife Sharpening Sanding Belts (2 x 42 inch)