| Packaging Details: | wooden box; steel box; or as your order |
|---|---|
| Delivery Detail: | within 7-15 work days |
1. Hejian Fist Petroleum Equipment Co., Ltd. We have been in line with the principle of faith-based, quality of survival and mutual benefit, provides the highest quality products and attentive service for our customers'. We are looking forward to establishing relationships with you in the near future
Milled tooth bits
• Soft formations (114-117)
These bits are designed to drill the softest formations such as soft shales, red beds, and clays, with high durability and maximum penetration rates.
• Soft to medium formations (121124126134136137)
These bits are designed to drill formations such as shales, medium soft limestone, Medium sandstone and other formations with intermittent hard streaks.
• Medium to hard formations (213214215217)
These bits are designed to drill formations such as hard sandstone; dolomite; and broken formations with hard cherty streaks
• Specifications
Size | 8 1/2 (215.9mm) |
IADC | 517 |
Bearing Type | rubber sealed sliding bearing |
WOB (KN/ mm) | 0.35~1.05 |
RPM (r/ min) | 120~50 |
Applicable Formations | 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 |

2. Other Products You may be Interested in
Model | 114-117127437517617637 |
Type | Tricone bits; Steel tooth bits; PDC bits |
Appliable |
water well; oil field; construction; geothermal; directional boring; and underground foundation work |
Formation | sticky; soft; medium hard; hard formation |
Bearing | rubber seal or metal seal |
Paking | wooden box; steel box; or as your requirements |

• 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.
3. Packing Information


4. Payment terms
T/ T and L/ C are acceptable. (30% advanced payment after sign the contranct , then 70% payment after see the B/ L)
5. Plz add these informations in your inquiry
1, bits size
2, bits IADC CODE
3, layer information
4, bits quantity