Quality dth bit

high pressure dth bit spline shaft:eight match hammer:340 350 360 380 ISO certificate

DTH bit is our company main product.After mang years search,we have rich experience in development and manufacture which adopted high-quality raw materials, advanced craft technology and passed through strictly inspection, manufacturing high quality products.

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		Zhongrui DTH bit technical parameters
No.	Descripation	Model	Match hammer	Front buttons	Gauge buttons	Bit face design	Weight(kg)
1	Tapered chisel bit	ZRQ20	-	-	-	-	0.09
2	Low pneumatic DTH drill bit	ZRQ90	ZRC80Z	2-1217ZL	6-1420ZL	Convex face	3.8
				2-1319ZL
3		ZRQ100		3-1217ZL	6-1420ZL	Convex face	4.2
				2-1420ZL
4		ZRQ110-A		4-1217ZL	6-1420ZL	Convex face	4.7
				3-1319ZL
5		ZRQ110	ZRC100Z	6-1319QL	7-1422QL	Convex face	5.8
6	High pneumatic DTH drill bit	ZRQ115G-A	ZRC100GZRC100G-ADHD340COP44	6-1319Q	8-1422Q	Flat face	8.2
7		ZRQ115G-AZ		6-1319Z	8-1422Q	Flat face	8.2
8		ZRQ115G-B		6-1319Z	8-1422Q	Convex face	8.1
9		ZRQ115G-C		6-1319Q	7-1624Q	Flat face	8.2
10		ZRQ115G-CZ		6-1319Z	7-1624Q	Flat face	8.2
11		ZRQ115G-D		6-1420Z	7-1624Q	Convex face	8.1
12		ZRQ115G-E	ZRC100G-A	6-1319Q	8-1422Q	Flat face	8.2
13		ZRQ115G-EZ		6-1319Z	8-1422Q	Flat face	8.2
14		ZRQ140G-A	ZRC130G ZRC130G-ADHD350COP54	7-1422Q	7-1826Q	Flat face	16.4
15		ZRQ140G-AZ		7-1420Z	7-1826Q	Flat face	16.4
16		ZRQ140G-B		7-1420Z	7-1826Q	Convex face	16.2
17		ZRQ152G-A		8-1422Q	8-1826Q	Flat face	16.4
18		ZRQ152G	ZRC150GDHD360COP64	4-1621Q	8-1624Q	Concave face	16.2
				4-1422Q
19		ZRQ165G		11-1621Q	8-1624Q	Flat face	24.4
20		ZRQ165G-A		8-1621Q	8-1826Q	Flat face	24.3
21		ZRQ165G-B		9-1621Q	9-1826Q	Flat face	24.3
22		ZRQ178G		10-1621Q	9-1826Q	Concave face	25.5
23		ZRQ203G		11-1621Q	9-1826Q	Flat face	30.2
Concentric Casing System With Ring Bits ZRTG140
Outer dia.of casing tube		Inner dia.of casing tube	Outer dia. of ring bit	Inner dia. of ring bit	Outer dia. of pilot bit	Match hammer	Weight(kg)
183mm		163mm	188mm	140mm	160mm	ZRC130G	60.3

Quality dth bit