Features Superior Diamond Material: Crafted from premium diamond, this hole opener ensures fast drilling speeds, significantly saving you time and effort on every project Exquisite Craftsmanship: Engineered for durability, this drilling hole saw bit features fine workmanship and wear resistance to enhance work efficiency and longevity Rapid Drilling Performance: Designed with a pointed head and large displacement cutting, this granite hole opener delivers impressive drilling speed for all your tough materials Versatile Application: Ideal for a variety of surfaces, this hole opener excels in drilling through granite, ceramic tiles, concrete, and marble with ease Smooth Cutting Experience: Enjoy a long service life with this tool, as it provides smooth cuts without chipping, ensuring professional-quality results every time Features: 1、Diamond: The hole opener is made of diamond material, with fast drilling speed, saving time and effort 2、Exquisite Workmanship: This is a hole opener that can improve work efficiency, fine workmanship and wear resistant 3、Fast Drilling Speed: This hole opener has a pointed head, fast drilling speed, and a large displacement cutting design 4、Wide Applications: This is hole opener suitable for drilling granite, ceramic tiles, concrete, marble and other materials 5、Cutting Smoothly: This is a hole opener, with long service life, which is cutting smoothly, and without chipping Specification: Item Type: Diamond Drill Core Bits Material: Diamond Colour: Blue Opening Aperture: Approx. 40mm / 1.57in Total Length: Approx. 68mm / 2.68in Internal Thread: M14 Scope of Application: for marble, granite and other stone openings Package List: 1 x Marble Hole Saw Package List 1 x Marble Hole Saw