Double thread crown casing drilling bit
KINGDRILLING Diamond Co., Ltd is specialized manufacturer and supplier of Rock Drilling Tools for Mining, Quarrying, Tunneling, Construction, Geological Exploration, Water-well Drilling, Oilfield & Gas Industries.
Double thread casing drilling bits, as one of our casing drilling system, is one of our main product. After many years search, we have rich experience in development and manufacturing high quality DTH Bits, which adopted high-quality raw materials, advanced technology and passed through strictly inspection.
How to order?
Crown Ring Bits: Casing OD + Bit OD + Thread Size
Inner Bits: Bit Diameter + Thread Size
Tool Joints: Diameter + Length + Thread Size
Outer/Inner Tube: Diameter + Length + Wall Thickness + Thread Size
1. 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.
2. Can I expect a quality products?
A: Yes. mature production technology ensuring the quality satisfy international request.
3. 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.
4. 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.
5. Fast delivery time:
A: Usually it takes 25 days for production.only 3 or 5 days if we have stock of your request size.