Features Premium Material The drill bit is made of premium diamond material with high hardness and durable use. Good working performance: strong opening performance, fast drilling speed, seamless smooth drilling. Practical Accessory This core drill bit is suitable for opening and drilling marble stone, ceramic brick and wall material. Easy to use: professional and practical design, beautiful appearance, easy to carry and use. Application This welded drilling core bit is mainly used for angle grinder. Specification: Condition: 100% Brand New Item Type: Welded Drilling Core Material: Diamond Colour: Red Applicable equipment: Angle Grinder Scope of use: marble, ceramics, walls, etc. Size: 6mm/0.2inch, 10mm/0.4inch (optional) Package List: 1 x hole saw for angle grinder. Note: 1. Please allow slight errors due to manual measurement. Thank you for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Take the real one as standard. Package List