ITEM NAME:2 Pieces Diamond Profile Grinding Wheel for Marble Ceramic Stone Thickness 13mm Description: Diamond coated, durable, long service life. Easy to grind, polishing and profile Fit for angle ginder, marble machine, and other machines, easy to install High efficiency and several times better than electroplated. Perfect for grinding on marble, granite, quartz, ceramics, artificial stone Specification: Inner Hole Diameter: Approx.20mm/0.79 inch Overall Diameter: Approx.75mm/2.95 inch French Style Thickness: Approx.15mm/0.59 inch Concave Round Thickness: Approx.13mm/0.51 inch Material: Metal, Diamond Color: Gold Package Includes: 1 Piece Concave Round Diamond Grinding Wheel 1 Piece French Style Diamond Grinding Wheel SKU: DMO0011858219430752.Perfect for grinding on marble, granite, quartz, ceramics, artificial stone. 1 Piece Concave Round Diamond Grinding Wheel. 1 Piece French Style Diamond Grinding Wheel. Fit for angle ginder, marble machine, and other machines, easy to install.