Main Products: Petroleum Equipments
API 7K Roller Kelly Bushing
Negotiable /Set
Min.Order:1 Set
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Sinotai Petroleum Equipment Co., Ltd.
Credit Member 4 years 
Business Type: Trading Company
Shandong ChinaMain Products: Petroleum EquipmentsProduct Details
Roller Kelly Bushing
1.Size:17 1/2-49 1/2 inch;
2.Roller Kelly Bushings are designed and manufactured according to API Spec 7K.
3.Roller Kelly Bushings have type:Heavy,Medium,Light-duty
4.Suitable for Kelly:Square(in),Hex.(in)
The details are as bellow:
Model | Type | Way of driver | Suitable for Kelly | |
Square(in) | Hex.(in) | |||
HDS |
Heavy | Square Drive | 3-6 | 3-6 |
27-HDP | Pin Driver | 3-6 | 3-6 | |
20-HDP | Pin Driver | 3-6 | 3-6 | |
M4 |
Medium | Square Drive | 21/2-51/4 | 3-41/4 |
20-MDP | Pin Driver | 21/2-41/4 | 3-41/4 | |
17-MDP | Pin Driver | 21/2-41/4 | 3-41/4 | |
S4 | Light-duty | Square Drive | 21/2-41/4 | 3-41/4 |
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