NQ HQ PQ NTW Geological diamond core drills for stone and concrete drilling
NQ HQ PQ NTW Premium Diamond Core Drill Bits for Stone and Concrete Drilling
1. Thinner diamond segment and thinner tube wall can easily reduce the resistance and increase the drilling speed (compare with the assembly type)
2. Provide 20% higher cutting performance, particularly in difficult operating conditions.
3. Very fast cutting speed and low cutting pressure.
4. Different connection end for different drilling machine.
5. Especially effective in drilling through reinforced concrete.