20Pcs Diamond Drill Bits 3mm 1/8 inch Diamond Drill Bits Core Hole Sturdy

Features: * 100% brand new and high quality * Sturdy and durable a good helper for your work and life * Very suitable for drilling clean and accurate holes in stone granite marble and ceramic tile * Better work with electric drill (this item is not included) * Easy to use. * Durable and practical. Tips: * 1.Please add water as coolant and drill slowly * 2.Start drilling to the surface at a 45-degree Angle and aim at the hole form at a 90-degree Angle * 3.Do not use the electric drill when the machine is in hammer condition. * 4.The hole is clean and no further processing is required * 5.Use with water as a lubricant Specifications: * Quantity: 20 pieces in total * Type: Coring bit * Use: Masonry drilling * Materials: diamond steel * Drilling speed: drilling per second * Hole diameter :3mm(nearly 1/8inch) * Total length :50mm(close to 2inch) * Depth of drilling (maximum):5mm depth. It is recommended that the depth of drilling be less than 5mm. * If the drill is too deep (for example the tile/glass thickness exceeds 5.1mm) the drill bit will be scrapped due to the middle hole being blocked * Shank diameter :2.65mm Package Contents: 20 * bit Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.