HQ High quality Top sale diamond core drill bits for hard rock mining Core Drilling Tools
Product information:
The synthetic diamond poly crystalline is manufactured by sintering the fine grains of synthetic mono crystals and at high temperature and high-pressure.Coring bits are also called hollow bits, which have the characteristics of high efficiency and low cost.
Advantage:
high wear ability,hot hardness high compressive and impact strength
Application:
Diamond core bits are widely used in the drilling for geological exploration,water conservancy and power engineering,hydro geological exploration and building construction,etc.
Specifications:
Size | Outside diameter(mm) | Inside diameter(mm) |
AQ | 47.75/47.50 | 27.10/26.85 |
BQ | 59.69/59.44 | 36.52/36.27 |
BQ3 | 59.69/59.44 | 33.65/33.40 |
NQ | 75.44/75.19 | 47.75/47.50 |
NQ2 | 75.44/75.19 | 50.80/50.55 |
NQ3, NQTT | 75.44/75.19 | 45.21/44.96 |
HQ | 95.76/95.38 | 63.63/63.38 |
HQ3, HQTT | 95.76/95.38 | 61.24/60.99 |
PQ | 122.30/121.80 | 85.09/84.84 |
PQ3 | 122.30/121.80 | 83.18/82.93 |