Description
diamond drills (VB) are professionally produced for dry or wet drilling on all types of ceramics, porcelain, tiles, granite, marble, stoneware and other hard materials.
With VB technology, the diamond drill bit can be drilled dry or wet on hard porcelain and stones with higher efficiency and longer service life.
NBB diamond drill bits with M14 thread connection can be used directly on a grinder.
Recommended RPM for use will be from 11,000 to 14,000 RPM.
The average life of Dia.6-14mm NBB VB diamond drill bits is approximately 40 holes.
The average life of Dia.20-82mm NBB VB diamond drill bits is approximately 60-100 holes.
The average life of the drill bits always depends on the type of material, its thickness and the correct cooling and use.
Drilling depth can be approximately 65 mm
NBB VB diamond drill bits can be used to drill holes needed for water inlets, drains, light spots, etc.
NBB VB diamond drill bits (dia. 6-14mm) have special cold wax inside to ensure proper dry drilling and stable performance.
NBB VB diamond drill bits (dia. 20-75mm) have a side opening that improves the cooling of the drill bit and facilitates the removal of solid waste after each drill.
To make the drill bits last longer, follow the correct instructions in the method of use.
1. Do not use the hammer mode of the machine.
2. Before doing a new drilling, we must make sure that the drill bit is properly installed in the machine, firmly without vibration.
3. The drill bit must be clean and free from any blockage.
4. When drilling, only little pressure is needed in the horizontal direction. The weight pressure of the machine will be sufficient in the vertical direction).




