This M22 thread diamond core drill bit extension rod is a 300mm thin-wall water drill bit designed for professional and DIY use. It is suitable for most drilling rigs and a wide range of applications, including tile, stone, and masonry. The screw hole interface allows for convenient loading and unloading. Constructed from a precision steel pipe matrix, it offers excellent hardness and resistance to deformation and wear. The cutting edge features a thick diamond coating for superior durability and long life. **Key Features:** * **M22 Thread:** Ensures compatibility with most standard drilling rigs. * **300mm Length:** Provides extended reach for deeper drilling applications. * **Thin-Wall Design:** Reduces material waste and cutting effort. * **Diamond Core:** Thick diamond edge ensures durability and efficient cutting on hard materials. * **Precision Steel Matrix:** Offers hardness and resistance to deformation and wear. * **Water Feed Required:** Must be used with water (wet drilling) for cooling, dust suppression, and to extend the life of the diamond segment. **Precautions & Usage:** * For use with hard materials like stone, tile, and masonry. * **Water must be added during operation** for cooling and to prevent damage to the bit. * A fixed or hand-held drilling rig is recommended. * Before installation, ensure the drill's main shaft is not swinging and all parts are functioning normally. * Ensure the drill bit is securely tightened and concentric upon installation. **Specifications:** * Colour: Silver * Material: Carbon Steel with Diamond Segment * Size: 300mm (Length) * Thread: M22 **Package Includes:** * 1 x Water Drill Bit (Extension Rod) Note: Only the item listed above is included in the package. Images are for illustrative purposes.