Features Effective Heat Dissipation: Featuring an internal wax design, these bits absorb heat, ensuring faster and cooler drilling for enhanced performance and longevity Superior Cutting Performance: Designed with an M14 female thread and slip-proof handle, these bits provide excellent torsion and high bearing capacity for various materials Extended Durability: Coated with thickened emery, these bits are built for wear resistance, ensuring a long service life and reliable results with every use Premium Cutting Material: Made with fine diamond powder, the cutting blade outperforms traditional carbide, offering more effective and precise cutting capabilities Convenient Storage Solution: The set comes with a high-end aluminum box, providing durable and organized storage to keep your drill bits safe and easily accessible Features: 1、Good Heat Dissipation: These drill bits have wax inside to absorb and dissipate heat for faster and cooler drilling performance 2、Good Performance: The drill bits are designed with M14 female thread and slip proof handle, feature large torsion and high bearing capacity, suitable for marble, glass, tiles, etc. 3、Long Service Life: The drill bits are uniformly coated with thickened emery, which improve wear resistance and service life, has stable performance 4、Stable and Material: The hole saw adopts fine diamond powder, the cutting blade is made of excellent diamond, which has more effective performance than traditional carbide or bimetal hole saws 5、Equipped with Aluminum Box: The drill bit set equipped with high end aluminum box for storage, which provides good and resistant Specification: Item Type: Diamond Drill Bits Material: Diamond Color: Black Aperture: Approx.6mm/0.2in, 6mm/0.2in, 8mm/0.3in, 8mm/0.3in, 10mm/0.4in, 12mm/0.5in, 14mm/0.6in Head Height: Approx.15mm/0.6in Working Length: Approx.35mm/1.4in Overall Length: Approx.60mm/2.4in Female Thread: M14 Package List: 7 x Diamond Drill Bit 1 x Saw Blade 1 x Aluminum Box 1 x Manual Note: betweendiv>1. Do not use these drills with hammer mode.between/div>betweendiv>2. Install these bits on a corded drill, not a cordless drill (doesn't have enough power).between/div>betweendiv>3. Only for tile drilling, not recommended for materials behind tiles.between/div>betweendiv>4. For horizontal drilling, just apply light pressure.between/div>betweendiv>5. For vertical drilling, the weight of the machine will provide enough pressure.between/div>betweendiv>6. Finger drills are used to enlarge, reshape or round the bevel of existing holes.between/div>betweendiv>7. Please wear all applicable safety gear when using these diamond bits.between/div Package List 7 x Diamond Drill Bit 1 x Saw Blade 1 x Aluminum Box 1 x Manual