Cobalt aero core drill bit segment concrete dimple diamond segment

ChinShine cobalt aero dimple core bit segment:
1. Aero dimple core bit segment can easily reduce the resistance and increase the drilling speed , which compare with the regular core bit segments.
2. Very fast drilling speed and low cutting pressure.
3. Especailly effective in drilling through reinfored concrete.
4. Cobalt segment is 1.5 times longer life than regular aero dimple core bit segment