The Bihui Dry Gres diamond drill bits are recommended for drilling all types of ceramic tiles, especially porcelain ceramics, as well as other cladding materials such as marble and granite. In the production of Bihui Dry Gres diamond drill bits, Vacuum brazing technology is used in the drilling zone, which reduces resistance to high friction temperatures and significantly increases the lifespan of the bits. The Bihui Dry Gres Vacuum drill bits are used for dry drilling and are directly connected to the angle grinder with an M14 thread. The maximum drilling speed with Dry Gres core bits is approximately 14,000 rpm. The average lifespan of Bihui Dry Gres drill bits varies depending on their diameter. For sizes from 6 to 12 mm, the average is 25 holes. For Bihui Dry Gres drill bits from 20 to 75 mm, this term is 60 holes. The average lifespan of the heads always depends on the type of material being drilled, its thickness, and the proper drilling and cooling of the drill bit. The internal crown of Bihui Dry Gres 6, 8, 10, and 12 mm contains cooling wax. During the use of the drill bits, the wax melts and improves cooling. Only the complete wear of the diamonds indicates the end of the drill bit's lifespan. The Bihui Dry Gres heads (20 to 75 mm) have a side hole that improves the cooling of the head and the removal of the drilled material from the inside of the head after each drilling. Before each new drilling, ensure that the head is clean and that there is no previously drilled material or other foreign objects inside it.

Advantages:

• High drilling speed.
• Suitable for both dry and wet drilling of ceramic materials, gres, porcelain.
• Long lifespan due to Vacuum and high-quality diamonds. The use of lubricating wax is recommended for even longer lifespan.
• The holes in the drill body prevent the body from bending during heating and improve the removal of material residues from the cutting area.

Specifications:

• Brand: bihui dry gres
• Size / diameter: 6/8/20/35/50 / 70mm
• Diamond height: 10mm (6 / 8mm), 15mm (20/35/50 / 70mm)
• Maximum drilling depth: 36mm
• Thread: M14 (screws directly onto the angle grinder shaft)
• Drilling type: non-impact, wet / dry
• Application: artificial and natural stone, tiles, glass, etc.
• Rotation speed: 9000-14000 rpm