Information Diamond types include sintering, electric plating or brazing. Electric plated and brazed diamond is surface coated, attached to the surface of the cutting edge. The cutting edge is instantly aging when the diamond breaks off. Sintered diamond cutting edge contains diamond particles from inside to outside, to ensure that the edge is always sharp. Sintered diamond has the sharpening property but electroplated or brazed diamond can not be sharpened. Diamond Cutting Disc Brazed Diamond Diamond grains are permanently brazed to the cutting edge. Provide high efficiency, fast and smooth drilling, and also ensure longer working life. No Coatings Features just the base substrate without any coatings, good for general purpose cutting. Easy to Use Works with most types of angle grinders. The protective cover must be installed on the machine. Wide Applications Suitable for cutting and grinding porcelain, tiles, marble, glass, ceramics, stone. The cutting edge allows for a smooth cut for a quick and easy experience. Use vertically and do not apply excessive external force during operation. Feeding should be smooth, no impact and overheating cutting, no curved cutting. Used with water for cooling and lubrication to prolong the using life and increase the performance. Wear protective equipment when working. Circular Saw Blade Circular Saw Blade Circular Saw Blade Circular Saw Blade Diamond Cutting Disc Add to Cart Buying Options Add to Cart Add to Cart Buying Options Customer Reviews 3.6 out of 5 stars 59 — 4.1 out of 5 stars 22 — 5.0 out of 5 stars 1 Price $8.59$8.59 — no data $11.29$11.29 $9.99$9.99 — no data Size 4-Inch 3-Inch 2-1/2-Inch 2-3/8-Inch 4-Inch Number of Teeth 40 Teeth 72 Teeth 72 Teeth 50 Tooth / Tip Material Carbide High Speed Steel High Speed Steel High Speed Steel Brazed Diamond Finish Uncoated Nitriding Titanium Coated Uncoated Diamond Coated