• Model NO.：MDHM4-110
• Trademark：MING
• Origin：China
• HS Code：8207199000
• Production Capacity：20000PCS,Year

ModelBit Dia.(mm)NO. X Button Dia.NO.Air Holes(PCS)Weight(KG)GaugeFrontMDHM30-85856*Φ134*Φ1224.5MDHM30-90906*Φ144*Φ1224.7MDHM30-95956*Φ144*Φ1324.9MDHM30-1001006*Φ145*Φ1225.0MDHM30-1051056*Φ145*Φ1325.54 inch high air pressure DTH bitsMDHM4-1051056*Φ145*Φ1326.0MDHM4-1101107*Φ146*Φ1326.2MDHM4-1151157*Φ146*Φ1326.6MDHM4-1201208*Φ147*Φ1327.0MDHM4-1271278*Φ147*Φ1327.45 inch high air pressure DTH bitsMDHM5-1351357*Φ186*Φ14212.5MDHM5-1401407*Φ187*Φ14213.5MDHM5-1461467*Φ187*Φ14214.0MDHM5-1521528*Φ188*Φ14214.4MDHM5-1651658*Φ188*Φ16215.06 inch high air pressure DTH bits120MDHM6-1521528*Φ187*Φ16222.0MDHM6-1651658*Φ188*Φ16223.0MDHM6-1711718*Φ188*Φ16224.0MDHM6-1901909*Φ189*Φ16325.0MDHM6-2032039*Φ1811*Φ16328.08 inch high air pressure DTH bitsMDQL80-30530512*Φ1829*Φ16495.0MDHM8-20320310*Φ1810*Φ16235.0MDHM8-21621610*Φ1812*Φ16240.0MDHM8-24124112*Φ1818*Φ16254.0MDHM8-25425412*Φ1821*Φ16357.0MDHM8-30530512*Φ1829*Φ16477.010 inch high air pressure DTH bitsMDHM100-25425412*Φ1820*Φ16390.0MDHM100-30530512*Φ1836*Φ164102.0MDHM100-31131112*Φ1836*Φ164104.0MDHM100-31831812*Φ1838*Φ164106.0MDHM100-33033014*Φ1842*Φ164112.012 inch high air pressure DTH bitsMDHM120-30530512*Φ1836*Φ164152.0MDHM120-31131112*Φ1836*Φ164158.0MDHM120-33033016*Φ1842*Φ164165.0MDHM120-35635616*Φ1948*Φ164178.0MDHM120-38138116*Φ1948*Φ184195.0MDHM125-30530512*Φ1836*Φ164170.0MDHM125-31131112*Φ1836*Φ164173.0MDHM125-33033016*Φ1842*Φ164182.0MDHM125-35635616*Φ1948*Φ164191.0MDHM125-38138116*Φ1948*Φ184200.0

Note: We can also design and manufacture the different diameter, holes number, carbide button shape and face shape according to the customers' requirement.


How to choose the suitable head face of the DTH drill bit?

1.  Concave:

Suitable for all kinds of formation, especially for deep well drilling, perpendicularity of the hole is wonderful.

1.  Convex: 

Suitable for the formation of moderate hardness stratum, drilling efficiency is good, borehole perpendicularity is moderate.

1.  Flat:        

Suitable for special hard formation stratum, especially for fracture, crack spacing and complex formation drilling effect is very good, has the good perpendicularity of the borehole.


Our Advantages as below:1. High quality steels materials. Steel is from TIMKEN and Tungsten carbide are YK05, or T6 from Element Six in Germany2. Kingdrilling DTH tools are forged by advanced electron-hydraulic forging hammer.3.Advanced heat-treatment equipment: multipurpose furnace heat treatment.4. Completed moulding (tooling ) departments with many molds available.5.Professional R&D team,completed quality system.6.Strict Quality-Check Systems.

The information you may like to know before order:
1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Based on order quantity, normally it takes 25 days for production.
Only 3 or 5 days if we have stock on your request size.
3. Shipping way
Sample order: We suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: We suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for each order before shipping out.
5. After Services:
1. Our sales team will response for your question within 24 hours (Holidays Excluded)
2. Technical Support will be available in any time

Our Service
Pre-sale service:
*Inquiry and consulting support
*Sample testing support.
*View our factory

After-Sale Service
*Traning how to install the machine, training how to use the machine.
*Engineers available to service machinery overseas.



Product Application:



Transport:


Package and Delivery:
Packed by Carton or Wooden cases.

Delivery:

1. Goods in stock can be delivered within 5 days.
2. DTH Bits production time is about 15 days.
3. DTH Hammer product time is about 30 days.

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