Specifications

(1)Material:55SiMnMo
(2)Shank:hex19/22/25mm
(3)Bit Dia:30-41mm
(4)Length:0.4m-5m...
(5)Package:wooden case/bundles/crate

Low cost!!! High quality Hex22 *108mm mining monoblock drill steel in quarry and mine

(Fleuret monobloc de Xiamen Bestlink)

 

Our factory can offer many kinds of drill bits, including chisel type bits, cross type bits, tapered drill rods and integral drill rods, mainly used for mining, coal cutting, tunneling, rock cutting in quarrying.

 

Integral Drill Steel is used by a hand held drill machine in Underground mining and for small hole drilling, equipped with small power rock drills, like air leg rock drills, hand held rock drills, etc. It can reduces the expense of impact energy, improves the drilling speed and efficiency, also it can be used for drilling bore hole diameter from 30mm to 41mm usually. Regarding Integral drill steels, the quality of a steel material and a tungsten carbide is very important to get good drilling performance.

According to different application, different lengths are available from 400mm to 5000mm usually.

Specifications:
(1)Material:55SiMnMo
(2)Shank size:hex19/22/25mm including plug hole rods
(3)Bit Dia:30-41mm
(4)Length:0.4m-5m...
(5)Package:wooden case/bundles/crate

The technical parameter of Internal drill rod:

  

 

Shank(mm)	Length(mm)	Bits Dia D(mm)	Weight(kg)
11 Series
Hex22x108	800	34	3
	1600	33	5.5
	2400	32	8
	4800	29	15.4
12 Series
Hex22x108	800	40	3
	1600	39	5.5
	2400	38	8
	3200	37	10.5
	4000	36	12.9
	4800	35	15.4
13 Series
Hex22x108	400	34	1.8
	800	33	3.1
	1200	32	4.3
	1600	31	5.5
	2000	30	6.7
16 Series
Hex22x108	600	35	2.4
	1200	34	4.3
	1800	33	6.1
	2400	32	8
17 Series
Hex22x108	600	41	2.7
	1200	40	4.6
	1800	39	6.6
	2400	38	8.7