Dry Vacuum Brazed Diamond Drill Bits

Is it inconvenient to add water to a high-altitude drill hole or add water to slip easily? Dry drilling bit without water, fast drilling, non-slip and stable. Drill the perfect hole in hard materials! It’s never been this easy!---No Water Added, Efficient WorkThe inside of the drill body contains cooling wax to cool and lubricate the drill bit. Direct dry drilling without adding water for faster, more precise drilling.Chip Flute DesignThe cutting edge adopts a chip removal groove design to easily remove chips, easy to clean, and greatly improve the punching efficiency. Less debris, less breakage, less heat, and a good finish.Wide Range Of UsesSets include common sizes and are ideal for home and professional use. Widely used for perforating ceramic tile, vitrified tiles, glass, ceramics, marble, granite, microcrystalline stone, and quartz stone.High QualityMade of high-quality diamond and flame-retardant brazing, high hardness, rust-proof and wear-resistant, and good toughness. The punc