300mmx1.0mm thickness 5pcs Diamond Coarse Cut Notched Rim Rock Saw Blade for Stone Lapidary good Glass Cutting Gemstone Jewelry

good Diamond Coarse Cut Notched Rim Rock Saw Blade， It is a professional quality blade manufactured using a high concentration of premium grade industrial diamonds.These blades will cut faster than regular notched rim blades and the smaller size thin core blades can be used when cutting valuable materials to minimize loss of material.A full diamond sintered blade, The blades can be used with rust inhibiting water coolants although oil coolants will result in longer blade life.