Cjueiom 12PCS 1/4" (6mm) Diamond Coated Hole Saw Drill Bits, Professional Grade for Glass, Ceramic, Tile, Marble, Porcelain & Brick with Nickel-Plated Shank & Quick-Cool Slots

• ✿Size: Cutting Hole Diameter: 6mm / 1/4 inch; Handle length: 50mm / 2 inch; Shank Diameter: 6mm / 0.2 inch; Package Contents 12 pieces diamond drill bits.
• ✿Wide Applications: Diamond core drill bit sets are perfect for drilling glass, ceramics, porcelain, ceramic tile, porcelain tile, limestone, slate, marble, light stone fiberglass, bottles, granite and pots.
• ✿Special Design：The granite hole saw kit with gap holes helps cool water to enter and chips to escape from the borehole, making the drilling process easier.
• ✿High Quality: This product is made of carbon steel with a diamond coating on the surface. High-quality diamond drill bits sharpen the grooved edges for smooth and high-precision cutting.
• ✿Useful Tips: The hole saw achieves high precision and smooth cuts without edge breakage, with good toughness and high strength.Large chip holes on the side can remove waste, ensuring smooth and accurate punching.

About Cjueiom: Providing customers with satisfactory products and services is the primary goal of Cjueiom. All our products have undergone strict quality inspection before packaging, so you can buy with confidence. Product Advantages: Diamond core drill bit sets are perfect for drilling glass, ceramics, porcelain, ceramic tile, porcelain tile, limestone, slate, marble, light stone fiberglass, bottles, granite and pots. The granite hole saw kit with gap holes helps cool water to enter and chips to escape from the borehole, making the drilling process easier. Specifications: Cutting Hole Diameter: 6mm / 1/4 inch Handle length: 50mm / 2 inch Shank Diameter: 6mm / 0.2 inch Package Contents: 12 pieces Diamond Drill Bits Note 1. When you using the diamond drill bits, please use lubrication (water),otherwise the diamond core drill will burn. 2. Not for use on Concrete or for depths beyond about 1/2".