[High Quality Material]This set of diamond hole saws is made of strong and durable high quality alloy material with diamond grinding, which can meet your various work needs. Boost your productivity[Exquisite Packaging]Portable Plastic case makes you more portable at work, the product is packaged in an Plastic case, not easy to lose, easy to store.[Product Features]Accurate drilling can be achieved without additional drilling tools. When water needs to be added for long-term work, the temperature of the drill bit is prevented from being too high, the drill bit is protected, and the service life of the drill bit can be extended.[Scope of application] It is suitable for all kinds of stone tools and , including marble and ceramic tiles, etc. It can be used for decorative drilling of industrial buildings and houses, and the sharp drill bit can effectively improve work efficiency.[Product adaptation] The product is suitable for Hand drill and bench drill, grinding width 10mm, drill diameter 6/8/10/12/14/16/18/20/22/25/28/30/35/40/42/45/50/55/60mm. Fits most angle grinders.Product Specifications:Drill size: 6/8/10/12/14/16/18/20/22/25/28/30/35/40/42/45/50/55/60mmFrosted width: 10mmCompatibility: Hand drill and bench drillColor: BlackMaterial: alloy + diamondPackage Contents:1*Plastic box19*hole openers(Drill size: 6/8/10/12/14/16/18/20/22/25/28/30/35/40/42/45/50/55/60mm)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.