CoCud Diamond Drill Bits, 10mm Cutting Diameter, Nickel-plated Coating Diamond Core Drill Hole Saws - (Applications: for Glass Precision Drilling Bits Tools), 4-Pieces

• ★Diamond Drill Bits Size - Designed specifically for 10mm / 0.39" hole sizes, 20 x 6.5mm / 0.79 x 0.26" Shank Diameter. The set includes 4 pieces of diamond drill bits.
• ★Wide Applications - Suitable for DIY projects, home improvement, crafts, and professional use. Whether you're working with ceramic, glass, porcelain, marble, or even concrete, these drill bits are up to the task.
• ★Adaptive - Whether you're using a hand drill or a bench drill, our set is suit various drilling tools, making it perfect for both DIY enthusiasts and professional craftsmen.
• ★Steel - Nickel plating surface can extend the service life and enhance the surface corrosion resistance. The diamond coating enhances the drilling speed, which makes it a bit sharper. Electroplated diamonds are uniform and more wear-resistant.
• ★ Useful Tips - Each Core drill bit engraved with a Depth mark is useful for precise projects. Choose a hole saw drill bit that matches the diameter of the hole you need to drill. Ensure that it is the suitable material you are working with.

Attributes: Product Name: Glass Hole Saw. Total Size: 50 x 10mm / 1.97 x 0.39inch (L*D) Shank Size: 20 x 6.5mm / 0.79 x 0.26inch (L*D) Drilling Diameter: 10mm / 0.39inch Package Contents: *4 pieces Diamond Drill Bits Features: ---These drill bits are easy to use and deliver smooth and efficient drilling. They are engineered to provide high precision, allowing you to create clean and smooth holes without chipping or damaging the material. ---Designed for professionals and DIY enthusiasts, this set offers exceptional cutting power and durability for a wide range of materials. Useful Tips: ---Apply Lubrication (water): Depending on the material you are drilling, you may need to apply lubrication to reduce friction and prevent overheating. This is particularly important for metal or hard materials. ---Place the tip of the coated brazed diamond hole saw on the desired drilling spot, ensuring that it is perpendicular to the workpiece surface. ---Once the drilling is complete, carefully remove the carbon steel hole saw from the drill. Clean any remaining debris from the hole and inspect the result to ensure it meets your requirements.