Diamond products and tools Hollow diamond drill bits
Various grades of diamond thin-walled air-core drill bit
Diamond core drill bits commonly used thin-walled air
specifications
Specification (diameter): 20 27 30 32 38 40 44 46 51 56 63 65 71
Effective length: 300 400 500
Specification (diameter): 76 80 91 102 108 110 120 130 150 155 158
180 200 250 300 400
According to user needs, special specifications can be customized
drill.
Scope of application:
Old and new buildings water heating, gas pipeline installation
drilling;
Air-conditioning, communications, drill pipe;
The installation of various electrical appliances, as well as fixed
telephone lines of the drilling expansion bolt;
Concrete pavement, asphalt pavement, bridges, subway tunnels,
buildings, dams and other engineering construction quality sampling
drilling;
Highways, general roads, bridges, tourist attractions marked the
installation of a variety of signs, safety handrails, railings,
lights, lighting bored;
Off the road at the end of the road space of cement grouting,
slurry pouring hole, vent hole;
Installation of equipment to the factory floor of the drilling
screw feet;
Floor households transformation, cutting doors and windows, modify
plumbing, pull the old buildings of reinforced concrete
reinforcement drilling;
Rail pad screw from an old pillow for new construction of drilling;
Mandatory for a variety of brittle materials, such as: marble,
granite, ceramics, tiles, refractories, glass and other brittle
materials, drilling rigid.
