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S & R 68x70mm - Team drilling system for drilling holes in concrete, stone, brick and other solid building materials. Used to operate the perforating gun with a cartridge SDS-plus. P>
The system consists of a hollow hard metal crown diameter 68 mm, adapter 110 mm in length, and center drill 8h110 mm. P>
The drill bit equipped 8 TCT carbide with high strength HRA 88-89. Carbide soldering can quickly drill-duty materials, as well as prolong the crown of life. The depth of the hollow crown -. 70 mm p>
Centering drill Drill hole allows for precise work crown. Due to the crown adapter is easily installed in the gun cartridge for high-quality and safe operation. P>