Features Made of high quality material with high hardness and durability Strong hole opening performance, fast drilling speed, smoothly and seamless Adopt high‑quality brazing technology, smoothly opening without broken edges, no vibration Suitable for drilling holes in marble, concrete, granite, tiles, glass, etc. Small size, easy to carry and store, convenient to use and with good performance Feature: 1. Made of high quality material with high hardness and durability 2. Strong hole opening performance, fast drilling speed, smoothly and seamless 3. Adopt high‑quality brazing technology, smoothly opening without broken edges, no vibration 4. Suitable for drilling holes in marble, concrete, granite, tiles, glass, etc. 5. Small size, easy to carry and store, convenient to use and with good performance Specification: Item Type: Hole Saw Drill Bit Color: Blue Material: Diamond Size: Approx. 83 x 25mm / 3.3 x 1in Maximum Opening: Approx. 25mm / 1in Uses: Suitable for drilling marble, concrete, granite, ceramic tiles, glass, etc.Size: Approx.25mm / 1in, 58mm / 2.3in Package List: 1 x Hole Saw Drill Bit  Note: Manual measurement, due to manual weight measurement, please allow 1‑3mm error. Thank you for your understanding. Package List 1 x Diamond Hole Saw Drill Bit