Diamond Drill Bit for Hard Rocks


Diamond Drill Bit for Hard Rocks


In the drilling process, there are always intact and dense rocks that are hard to drill for general diamond bits. Our independently developed diamond drill bit for hard rocks is designed with special techniques to ensure the continuous and stable drilling speed, so as to avoid delaying the construction progress with high drilling efficiency. Most of these hard rock drill bits are manufactured using hot press sintering technique. The hardness of the matrix is HRC5-20.


Available Size for our Impregnated Diamond Bits
"Q" series:  AQ, BQ, NQ, HQ, PQ/AQTK, BQTK, BQ3, NQ2, NQ3, NQTT, HQ3, HQTT, PQ3, PQTT
T2 series:  T2 46, T2 56, T2 66, T2 76, T2 86, T2 101
T6 series:  T6 76, T6 86, T6 101, T6 116, T6 131, T6 146, T6S 101, T6S 116
T series:  T36, T46, T56, T66, T76, T86
Z series:  Z46, Z56, Z66, Z76, Z86, Z101, Z116, Z131, Z146
B series:  B36, B46, B56, B66, B76, B86, B101, B116, B131, B146
WF series:  HWF, PWF, SWF, UWF, ZWF
WT series:  RWT, EWT, AWT, BWT, NWT, HWT
WM series:  EWM, AWM, BWM, NWM, HWM
WG series:  EWG, AWG, BWG, NWG, HWG
Triple Tube core barrel: BLMC, NMLC, HMLC,3C, 4C, 6C, 8C, 10C, 12C, 14C, 16C, 18C, 20C
LTK series: LTK48, LTK60
GM series: BGM, NGM, HGM, ADBG, 
BW Series: TBW, TNW,
Others:  NXD3, AX, NX, NXC, AXT, T6H, 4 9/16, NWD4, 412F, SK6L146, TT46, TB56, TS116, CHD101
Chinese series S75, S89, S95, S101, S115, S131, S146



1. Relatively low cost product for short holes

2. Our diamond drill bit for hard rocks is 30% softer than a competing bit (cuts hard rocks faster)

3. This hard rock drill bit resists abrasion, and its OD and ID gauges last longer

4. Higher diamond concentration allows increased tool life and penetration rates

5. Lower fuel consumption and less equipment wear

6. Simplified matrix choice help reduce inventory costs


Our diamond drill bits are used for hard rock drilling, metal exploration, coalfield mining, geological exploration, water well drilling, hydro power and water conservancy, water and electricity building, construction industry of road, bridge, railway, and building, etc.

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