SHDIATOOL Diamond Grinding Cup Wheel 4-1/2 Inch For Granite Marble Iron Steel Masonry Convex Vacuum Brazed Grinding Disc Fits 7/8 Inch Arbor 115mm.

High Quality Diamond #30/40 Coarse high quality Diamond grain ensure aggressive working performance. Multi-purpose for granite marble natural stone ceramic and even steel grinding. Very high quality, grinding granite marble natural stone ceramic iron steel , grooves in stones with less spark, faster and safer. 1.Application: Dry or Wet working,Multi-purpose for iron steel granite marble natural stone ceramic and even steel grinding 2. Size: 1pc Diameter 115mm (4-1/2 inch), Bore 22.23mm (7/8 inch),Diamond grit 30/40 3. High Quality: 30/40 Coarse high quality Diamond grain ensure aggressive working performance 4. Durablity: Vacuum Brazed Technology provide faster grinding Speed and longer working life and safer operation 5. Machine: 7/8 inch arbor is suitable for angle grinder, the recommend speed is 8063 RPM