[Material] - Made of tungsten carbide, the angle grinding disc is durable and practical. Due to its strong structure, it is not easy to break or deform. The tungsten carbide coating is composed of hundreds of very sharp teeth, which can quickly remove inventory and more than hundreds of sandpaper pads. [Size] - This woodworking grinder is compatible with 5/8 inch aperture angle grinder. Flat and bevel grinding machines. Outer diameter: 100 mm / 4 inches. Inner diameter = 16 mm / 5/8 inch. . Easy and quick to install on standard electric angle grinders. [Compatibility] - - Compatible with 16 mm/0.62 inch aperture angle grinders, high-performance woodcarving tools, suitable for angle grinders and manual grinders. Wood trimming, peeling, chamfering, trimming and deburring, polishing, manual DIY, can be used to shape convex, concave, inclined and flat surfaces. Colour: golden Material: metal Package Contents: 1 * Flat grinding and forming grinding disc 1 * Bevel wood carving grinding disc 1 * Arc wood carving plate 4 * Installation accessories Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.