Features Premium Aluminum Alloy Construction: Crafted from high Features: 1、Made of diamond material with high hardn and durability 2、Strong hole opening performance, fast drilling speed, smoothly and seaml 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、Great workmanship, replacement for the old one Specification: Item Type: Diamond Hole Saw Drill Bit Color: Gold Size: Approx. 65 x 35mm / 2.6 x 1.4in Hole Diameter: Approx. 35mm / 1.4in Handle Diameter Width: Approx. 10mm / 0.4in Uses: Suitable for drilling holes in marble, concrete, granite, ceramic tiles, glass, etc. Package List: 1 x Diamond Hole Saw Drill Bit Note: betweendiv>1. The hole opener is installed on the electric drill. Since this hole opener does not have a center positioning drill, operate carefully and pay attention to safetybetween/div>betweendiv>2. Continuously add water to cool, dry drilling is strictly prohibited, high temperature friction occurs, causing serious wear and tear and affecting the use effect.between/div> Package List 1 x Diamond Hole Saw Drill Bit