NBB Diamond Drill Bit with M14 Sort Diamond Core Bit for Drilling in Porcelain Ceramic Tile Granite Marble Wet for Angle Grinder (68mm)

• 1 piece diameter 68 mm NBB VB diamond drill bit in professional quality with M14 connection, diamond crown in the shape of a matrix that can be easily connected to the angle grinder. Standard connection in Europe and the UK.
• Easy operation, for dry and wet drilling, can work in all conditions. Perfect tools are within reach. You can also do the same great work as a master!
• Appropriate size after thousands of test experiences. For 6-16 mm approx. 62 mm total length with 35 mm drilling depth for 18-150 mm approx. 60mm total length with 35mm drilling depth. Meets the vast majority of work requirements.
• Excellent operating experience, low vibration, low noise. Use it once, love it for life. Super high work efficiency, a new generation of diamond technology allows you to drill hard grass, ceramic, floors, granite, marble etc. in dozens of seconds.
• Durable and stable drilling life, a NBB VB drill for dry drilling dozens of holes in hard porcelain, much longer life than galvanized. Save your money. You can drill much more when wet.

NBB Welded (VB) diamond drill bits are professionally made for dry or wet drilling on all types of ceramics, porcelain, tile, granite, marble, stoneware and other hard materials. With VB technology, diamond drill bits can drill dry or wet on hard porcelain and stones with higher efficiency and longer life. NBB diamond drill bits with M14 thread connection can be used directly on a grinder. The recommended speed for use is 11,000 to 14,000 rpm. The average service life of the NBB VB diamond drill bits with a diameter of 6-14 mm is approx. 40 holes The average life of the NBB VB diamond drill bits with a diameter of 20-75 mm is approx. 60-100 holes The average life of the drill bits always depends on the type of material, its thickness and proper cooling and use. The drilling depth can be approx. 35 mm. NBB VB diamond drill bits can be used to drill the necessary holes for water inlets, drains, light points, etc. The NBB VB diamond drill bits (diameter 6-14mm) have a special cold wax inside to ensure proper dry drilling and stable performance. The NBB VB diamond drill bits (diameter 20-75 mm) have a side opening that improves the cooling of the drill and facilitates the removal of solid waste after each drilling. To make the drill bits last longer, please follow the correct instructions for use. 1. Do not use the hammer mode of the machine. 2. Before we do a new drilling, we need to make sure the drill is properly installed in the machine, firmly without vibration. 3. The drill must be clean and free from any blockages. 4. Little pressure is required when drilling (in horizontal direction). The pressure of the machine weight will be sufficient in the vertical direction.)