Check the listing for details. 5Pcs 6 inch Thin Edge Wet Diamond Blade Disc Lapidary Saw Gemstone. Condition: New. Listed at 21.99 USD. 5Pcs 6" inch(150 mm) Super-Thin Diamond Lapidary Saw Blade Jewelry Gems Cutting Blade Disc Code XYP-150*0.18*20 Product Specification: Diameter : 150 mm ( 6" inch) Arbor hole : 20mm (close to 3/4") Can be used on 1/2"(12.7 mm) or 5/8"(16 mm) arbor with a bushing . Include a message when you check out telling me what size bushing you require free of charge. Thickness: 0.013"(0.32 mm) core thickness / 0.017" (0.43 mm) on the edge where the diamond is. Quantity: Total 5 Pcs Product Description: Exclusively designed for processing materials for softer high value rocks like turquoise, gaspeite, opals. These blades are manufactured by crimping Synthetic diamonds directly into the edge of the saw blade. They are best suited for turquoise, opal, glass, and stones in the 4-6 range on the Mohs hardness scale. We don't recommend using this blade to cut too hard materials, such as: agate and jadeite with a Morse hardness of 6-7. Because it is difficult to cut or the blade will be damaged quickly. This blade will perform well on any hardness rock. SINTERED Diamond Blade Saw Advantages: achieving satisfactory cutting results and reducing unnecessary material consumption. This thin diamond lapidary saw blade offers a very good cost effective option for those that want either very thin kerfs or plan on short term use. Used for Trimming: They are excellent for trimming small shapes into stones. This simply means that these blades are meant for small material, not large or slabbing techniques. Also, these blades operate in a single direction so make sure that the arrow on the blade is pointed towards you when mounting. Use with water as a lubricant. New, Unused Blade - Not in Original Packaging These blades were originally packaged in oil so you will see several oil spots on the surface. We will send out your order within 1-2 days after payment has been received and cleared.