- Place of Origin: Hebei, China (Mainland)
- Brand Name: Chuanshi
- Model Number: 527
- Type: Twist Drill Bit
- Material: High Speed Steel
- Use: Well Drilling
- Processing Type: Forging
- Color: Various
- Certification: API&ISO
Packaging & Delivery
|Packaging Details: ||wooden box; steel box; or as your order |
|Delivery Detail: ||within 7-15 work days |
1. certified by API-ISO
2. good quality, low price
3. good after-sales service
4. adequate stocks, fast delivery
12 1/4 (311.15mm)
rubber sealed sliding bearing
WOB (KN/ mm)
RPM (r/ min)
medium to hard hardness formations with low compressive strength; such as medium; soft shale; medium soft limestone; medium soft sandstone; medium formation with harder and abrasive interbeds; etc
Other Products You may be Interested in
Tricone bits; Steel tooth bits; PDC bits
water well; oil field; construction; geothermal; directional boring; and underground foundation work
sticky; soft; medium hard; hard formation
rubber seal or metal seal
wooden box; steel box; or as your requirements
T/ T, L/ C
2000 Pieces/ month
within 7-15 work days
These types of bits have some common features, as follows
1. Force balanced, resist impact to the blade during high-speed drilling, to make bit work stable.
2. Plus wear knot section, reduce collion in the hugh-speed rotational vibration.
3. Patented matrix formulation, extended bit life.
4. Optimal hydraulic desigh, easy to move out the drill cuttings and cooling.
5. Equipped with back reaming teeth.
6. The cutter is high performance to increase the ability of anti-impact and anti-abrasive.
FAQ (Frequently Asked Questions)
1. How to order the products?
Send the inquiry with detail item description or with Model number.
If there is no packing demand we take it as sea-way packing.
If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.
2. About lead time and shipping time?
The lead time depend on quantity of order. Usually shipped by sea, small order or urgent order we can send you by air after received your agreement.
According the distance from china to your port, usually from China to European about 25 days. To West of American 20 days.
3. Can I expect a quality products?
Yes. All our activities are accredited to ISO 9001: 2008 and API, both in products and services, at the same time, mature production technology ensuring the quality satisfy international request.