Features 1、Milling Cutter: Mainly used for the hole milling, trimming, shaping, enlarging and so on, suits for various hole diameter. 2、Practical Uses: Allows for application on a variety of stone material, including but not limited to granite, quartz, etc. 3、Stable Working: 5/8‑11 thread design enables firm fixing without falling, while the heat dissipation holes ensure stable working. 4、Great Material: Premium diamond material has largely improved the sharpness, which also has great durability with wearing. 5、Easy to Install: Comes with a light weight and a compact size as well, the installation can be quickly finished in minutes. Specification Item Type: Diamond Milling Bit Material: Alloy steel, diamond. Package List 1 x Diamond Milling Bit