• Model NO.：MK-MEC-165
• Trademark：MING
• Origin：China
• HS Code：8207199000
• Production Capacity：20000PCS,Year

Model

Hole dia(mm)

Weight (KG)

Closed dia.(mm)

Pilot dia.(mm)

Length(mm)

Case dia.(OD*ID)

Spline

MK-MEC90

125

16

90

100

360

114*102

MACH33,DHD3.5

MK-MEC115

155

30

115

125

510

139*127

DHD340,SD4.QL4

MK-MEC140

188

52

140

151

570

168*153

DHD350,SD5,QL5

MK-MEC165

215

95

166

178

690

194*181

DHD360,SD6,QL6

MK-MEC190

238

108

190

203

690

219*206

DHD360,SD6,QL6

MK-MEC215

276

140

215

236

720

254*240

DHD380,SD8,QL8

MK-MEC235

293

160

236

251

730

273*254

DHD380,SD8,QL8

MK-MEC240

293

168

241

256

730

273*260

DHD380,SD8,QL8

Drilling Bit for Hard Rock Working principle:

1. Ring bit and casing shoe assembly is welded to casing prior to drilling. Lock the assembly into pilot bit with hammer. The pilot bit's upper shoulder engages the shoulder of the casing shoe. 
2. Hammer's percussive energy is transferred through the pilot and ring bits, crushing rock . Part of impact energy advances casing. 
3. On completion of drilling and casing , the drill string with pilot bit is retrieved by a slight reverse rotation to unlock the bayonet coupling . The ring bit stays in the hole , and can be recovered only if the casing is retrieved 
4. Drilling continues to the desired depth in the bedrock using a conventional drilling.
 

Drilling Bit for Hard Rock Advantages:

1. Full face head design for faster penetration and straighter hole,

2. Less torque is required.

3. It can drill in vertical, horizontal or any direction

4. Minimize disruption to the drilled hole

5. Varied ring bit diameters to suit different casing requirement.

1. High quality: We are the partners with a lot of big factories in China. We can provide the best quality products to you. 
2. Competitive price: Competitive price because of direct factory price. 
3. Fast delivery time:usually it takes 20 days for production.only 3 or 5 days if we have stock of your request size.
4. Best quality control:We have our own experienced QC team,there will be strict inspection and testing for each order before shipping out.
5. Problems solve ability:This ability comes from rich experiences of drill bits industry and reliable sales..
6. OEM,ODM service:your own request about product will be served well.
7. Best after service:We will go to your place to check and solve the problems if you need.

Feature:
1.High quality steels materials. Steel is from TIMKEN and Tungsten carbide are YK05, or T6 from Element Six in Germany
2.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.
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


FAQ:
1. How to order the products?
A: Please send the inquiry with detail item description or with Model number.
 
2. How about the common packing?
A: If there is no special packing demand, we will take it as our normal packing. First in small carton, and then put in the bigger carton together to make sure goods completed.
 
3. Can I expect a quality products?
A: Yes. mature production technology ensuring the quality satisfy international request.
 
4. How to check the product are the exact one you want?
A: If possible, please attach one reference picture to avoid any misunderstanding or any links from our website for a better understanding.
 
5. How to control quality?
A: We have our own experienced QC team,there will be strict inspection and testing for each order before shipping out.
 
6. Fast delivery time:
A: Usually it takes 25 days for production.only 3 or 5 days if we have stock of your request size.
 
7. Shipping way:
A: Sample order: we suggest Courier express delivery such as DHL/UPS/TNT/FEDEX or by air
Bulk order: by air or by sea we suggest.
 
8. Competitive price:
A:KINGDRILLING factory can supply you the lowest price due to direct sale to customers without distributor!

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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