Diamond Drill Bit Bq Nq Hq Pq

Diamond Drill Bit BQ NQ HQ PQ

Product Description

Features:

1.High penetration rate and drilling effeciency.

2.Long service life;

3.Good gauge effect;

4.High cost performance;

5.Wide usable range, diamond core bits are the most commonly useful bits in the mineral exploration industry.

Specification:

Double tube surface
Size( surface exploration drill	Matric system(mm)	Imperial system( in )
Hole diameter	Core diameter	Hole diameter	Core diameter
BQ	60	36.4	2.36	1.43
NQ	75.7	47.6	2.98	1.88
HQ	96.1	63.5	3.78	2.5
PQ	122.7	85	4.83	3.34
Triple tube surface
NQ3	75.7	45	2.98	1.78
HQ3	96.1	61.1	3.78	2.41
PQ3	122.7	83	4.83	3.27