Product Details: Including 8 pieces indestructible discs, measuring 4" diameter, 0.063" thick, 0.875" bore, compatible with 100-type angle grinders and stone cutting machines, sufficient quantity to meet your daily use needs. Perfect Cutting Performance: The edges of these 0.063" thick ultra-thin saw blade wheels feature high quality diamond particles, providing cutting without debris, good flatness, precise and fast cutting. Low Cutting Noise: There are multiple heat dissipation holes enable the grinding disc to proceed cutting with lower noise and less dust, which can be used for long-term continuous cutting of various work surroundings. Easy to Install and Use: Just need to cooperate with the locking nut on the inside and outside of the angle grinder, the cutting disc can be stabilized on the grinder, more convenient, safer and longer service life. Widely Applications: Being of great use in industry, WRINGKIT ‎indestructible discs are suitable for cutting PVC pipe, color steel tile, thin-walled pipe, rubber, color steel tile, square pipe, angle iron, steel within 20mm marble, wood, etc. WRINGKIT 8 Pack Indestructible Disc for Grinder, Grinding Disc for Angle Grinder 7/8", 4 Inch Cutting Discs for Smooth Cutting, Chamfering, Grinding Glass Metal Wood