Connection: M14 Thread, Diamond height: 10mm/15mm. Diameter 50mm, Workable length: 50mm. Connection: M14 Thread, Total Length: 55mm. Iameter 20mm, Drilling Height: 5mm, Grinding Height: 30mm. Connection: M14 Thread, Total Length: 60mm. M14 Male Thread to Triangle S. Total lengt 53MM, shank length 28MM. Chamfering porcelain tile, granite, marble, ceramic, etc.. Drilling, grinding and chamfering meet a variety of wokr requirements and increase efficiency. Vacuum brazing technology, better durability and higher heat resistance. Adapter: High-quality steel, long service life. Come with an Aluminium Box, easy to carry and more economical. Other Diamond Tools i. Router bits, engraving bits, mouted points…. Please kindly wait if it is delayed, thank you! Most parcel can be tracked on 17track. We will provide great aftersales service. If you need some technic support, we may help you. Some feedback helped us improve our quality, you will be rewarded free gifts, thank you. These products are marked with our brand. If you do not want our brand name, please leave us message, we could send you products without brand. Customized service: If you order 20 pieces and above, we can mark your brand name on the product if you want. Your encouragement and support is our motivation to keep moving forward.