bq hq nq pq aq diamond core drill bit used for medium hard to hard and abrasive formations. 1.Q series 2.X series

             bq hq nq pq aq diamond core drill bit     

Features: 1.Impregnated core bits are manufactured to give optimum penetration rates and bit life, 

2.designed to expose new diamonds to the bits' cutting face as wear occurs. Fast penetration rate is maintained as a result of this action.

3. can penetrate a broad range of formations from the sofest to the hardest rocks.

4. High quality synthetic diamond powders are distributed in the depth of impregnated core bit's matrix series. The matrix layer of the crown contains a uniform distribution of these crystals that are embedded in a powdered metal bond. 

 type:

Core Barrel	Outside Set Diameter				Inside set Diameter
Specification	Maximum		Minimum
	inch	mm	inch	mm	mm
AQ	1.88	47.75	1.87	47.5	76
BQ	2.35	59.69	2.34	59.44	91
NQ	2.97	75.44	2.96	75.18	110
HQ	3.77	95.76	3.755	95.38	130
PQ	4.815	122.3	4.795	121.8	150
T2-101	3.982	101.14	3.97	100.84	171
T6-101	3.982	101.14	3.97	100.84	223