Enlarge DTH Hole Opener Drill Bits/DTH Opener Reamer Bits

• Certification：ISO 9001:2000, SGS
• Standard：GB
• Surface Treatment：Spray-Paint
• Manufacturing Process：Forging
• Material：Carbon Steel
• Transport Package：Wooden Case

=== Base Info ===

• Model NO.：MDO165D6
• Trademark：MING
• Origin：China
• HS Code：8207199000
• Production Capacity：20000PCS,Year

=== Description ===
DHD112133.6MDO254D1225437518×1812×18 15×18136.2MDO311D12311444.518×1915×19 21×19328.5

 Rock drill bits advantages :
(1)  Wear pads, back reamer buttons, and or buttons on the pilot can be added for an additional fee.
(2)  The ability to use less powerful equipment than that required to drill the large diameter hole.
(3)  Straighter holes result from the smaller pilot hole.

DTH bits for hole opener :
1.Manufacture as your requirement
2.Bit diameter, face shape
3.Carbide button shape
4.Number of air hole.


Application: Mining, Quarrying, Tunneling, Construction, Geological Exploration, Water-well Drilling, Oilfield & Gas Industries.
Quality: More than 40 Years engineer to make sure the quality, 100% inspection
Carbide Button: Spherical, Ballistic, Semi-ballistic.
Bit face: Convex, Flat, Drop Center.
Color: Green, Blue, Grey, as your demand.


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.
 2.Convex:  Suitable for the formation of moderate hardness stratum, drilling efficiency is good, borehole perpendicularity is moderate.
 3.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 Service

1.Pre-sale service:

Act as a good adviser and assistant of clients enable them to get rich and generous returns on their investments . 1.Select equipment model. 2.Design and manufacture products according to client's special requirement ; 3.Train technical personnel for clients .

2.Services during the sale:

1.Pre-check and accept products ahead of delivery .
2. Help clients to draft solving plans .

3.After-sale services:

Provide considerate services to minimize clients' worries.
1.Complete After-sales service,professional engineers available to service machinery at home or oversea.
2. 24 hours technical support by e-mail.
3.Other essential technological service.