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Drill Dub Adapters Made in China dabaosodmi3  2019/12/06 11:52:47
PIN to BOX Drill pipe Sub adapter:
Product details
Different drill pipe sub adapter are available to help different thread part connect together.
Rod to core barrel, rod to water swivel, rod adapter, casing adapter etc.
Tool joint material:40Cr, 45Mn2, 35CrMo, 4137H, etc.
Apply to connection 50mm drill rod Well Drilling,Geological drilling
More details of PIN-BOX Adapter
ConnectionLength C (mm)Length Shoulder J (mm)Width Spanner flats E (mm)Std bore d (mm)Outside diameterAcross Flat F (mm)
Box up ABox down BTop D1 (mm)Bottom D2 (mm)
API2-3/8"REGAPI2-3/8"REG14050.8652488.988.969.85
API2-3/8"REGAPI2-7/8"REG134.969.8550.831.7588.988.969.85
API2-3/8"REGAPI3-1/2"REG14639.750.825.4114.388.998.4
API3-1/2"REGAPI3-1/2"REG101.639.750.844.4512712798.4
API3-1/2"REGAPI4-1/2"REG134.939.750.852.4114.314698.4
API2-7/8"REGAPI2-3/8"REG134.939.750.831.7588.988.969.85
API2-7/8"REGAPI3-1/2"REG134.939.750.844.45114.3114.398.4
API2-7/8"REGAPI4-1/2"REG174.610050.844.45114.314698.4
Our Advantages as below:
1. Kingdrilling DTH tools are forged by advanced electron-hydraulic forging hammer.
2. Advanced heat-treatment equipment: multipurpose furnace heat treatment.
3. Completed moulding (tooling ) departments with many molds available.
4. Professional R&D team,completed quality system.
5. Strict Quality-Check Systems.
FAQ:
1. Can I expect a quality products?
A: Yes. mature production technology ensuring the quality satisfy international request.
2. What is the general delivery time?
15 working days for DTH bits.
20-25 working days for DTH hammer
3-5 working days for ex stock items.

3. Competitive price:
A: KINGDRILLING factory can supply you the lowest price due to direct sale to customers without distributor!
4. What is the Application?
Mining, Quarrying, Tunneling, Construction, Geological Exploration, Water-well Drilling, Oilfield & Gas Industries.

5. What is the materials?
Steel is 42CrMo, Alloy is from from ZHUZHOU 601

6. How to choose the suitable head face of the DTH drill bit?
A. Concave:
Suitable for all kinds of formation, especially for deep well drilling, perpendicularity of the hole is wonderful.
B. Convex:
Suitable for the formation of moderate hardness stratum, drilling efficiency is good, borehole perpendicularity is moderate.
C. 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.
Drill Dub Adapters Made in China
website:http://www.mingdthbit.com/drill-rods-adapters/drill-dub-adapters/