ISO9001 القياسية 34 مم زر مثقاب 7/11/12 درجة كربيد عالية الجودة

7/11/12 Degree Tungsten Carbide Tapered Button Drill Bit For Rock and Mining Coal Drilling

Describtion

Product Technical Reference

we can design and manufature according to your requirment of diamater,number of air holes,carbide button shape and face shape.

Question one:How to use drill bit more correct?

Answer:

1.Choosing the right drill bit is the premise to obtain maximum drilling speed.

2.When open the hole,it should be stable and must lower rock drill working parameters,prevent single button under over load then cause the button broken or lost.

3.According to the drilling condition,timely adjust the rock drill paramaters.

4.After a period of time working,the button and the body of drill bit should be examined.

5.When drilling,for improving drill bit drilling speed,you should ensure that there is adequate hydraulic or air pressure for preventing drill bit from excessive wearing and jamming which caused by bad powder exhaust.

Question two:What if i buy early abnormal scrapped button bit?

Answer:please timely inform our company by written notice.Notify the main contents include:

1.the model number of rock drill,the actual working paramaters(impact pressure,impact powder,impact frequency,driving power and rotation speed)

2.Drill rig model number

3.drill rod tail,drill rod and connection sleeve manufacture,specification and usage condition.

4.The rock type and hardness,the construction site(open air,underground,tunneling,production,the anchor hole or others),drilling type(down,horizontal,fan form or others),drilling depth.

5.The failure condition of drill bit:A.failure type(button broken,button lost,wear off),lifespan,quantity;B.the button wearing condition(residual height);C.planned service life;D.normal average service life;E.other manufacturers product average service life.

6.We will check whether it is factory duty or end users unproper operation.If that is factory duty,we will fully refund abnormal scrapped buttons bits cost.