Diamond saw blade comes in diamond segments and blank blade(we also usually call it as "Core"). Divided by the features of the core, there are 2 types of diamond saw blades: silent blade and non-silent blade(normal blade). The silent blade is the diamond saw blade with a silent core. Different from the normal blade, the core of a silent blade contains a piece of thin copper sheet(0.04-0.05mm), to help reduce the noise when cutting. This silent type 400mm diamond saw blade is designed for cutting granite. The silent core results in less noise and is more friendly with the environment. With an arbor of 50/60mm, it fits CNC bridge saw and can cut granite at high performance. When cutting medium-hard granite, the life of this 400mm granite blade(15mm segment height) is about 450-600mm2. Sunny Superhard Tools developed excellent diamond formulas for cutting different hardness of granite at high efficiency. 16 inch (400mm) diamond saw blade for granite cutting. The silent core is more friendly with the operators and the environment. Different outstanding diamond formulas for different hardness of granite. Cutting smoothly and with a long lifespan. Other Sizes of Diamond Saw Blades For Granite Cutting: Diameter Segment Size Segment Nos. Diameter Segment Size Segment Nos. mm mm teeth mm mm teeth φ300 40*3.0*10 21 φ600 40*4.8*10 42 40*3.0*12 40*4.8*12 40*3.0*15 40*4.8*15 40*3.0*20 40*4.8*20 φ350 40*3.2*10 24 φ700 40*5.2*10 42 40*3.2*12 40*5.2*12 40*3.2*15 40*5.2*15 40*3.2*20 40*5.2*20 φ400 40*3.6*10 28 φ800 40*6.0*10 46 40*3.6*12 40*6.0*12 40*3.6*15 40*6.0*15 40*3.6*20 40*6.0*20 φ500 40*4.2*10 36 Other specifications can be customized upon your requests. 40*4.2*12 40*4.2*15 40*4.2*20 SAFETY TIPS:  Whenever you are using a diamond saw blade for cutting projects, for keeping safety, please be careful and make sure that your body is fully protected. Safety is the first thing you should concern when doing cutting works.φ400*40*3.6*15*28T