Changsha Sollroc Engineering Equipments Co., Ltd
FOCUS IN MANUFACTURING OF HIGH QUALITY DTH AND RC DRILLING TOOLS.
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Step type Drag Bits diameter 254mm three wings for water wells, environmental and exploration
Product specifications:
We supply two types of drag bits: Step-type and Chevron-type, which can be customized with different threads.
Step type bits are the most common type of drag bit used widely for soft to medium formations.
Chevron bits are designed for medium to hard formations.
Thread available:2 3/8, 3 1/2, 4 1/2, 5 1/2, 6 5/8 API Reg. Pin, IF Pin
| Bit diameter | Thread Type Pin |
| 3-5/8″ – 4-3/4″ | 2-3/8″ API PIN |
| 4-7/8″ – 5-1/8″ | 2-3/8″ API PIN |
| 5-1/4″ – 5-1/2″ | 2-3/8″ API PIN |
| 5-5/8″ – 6″ | 2-3/8″ API PIN |
| 6-1/8″ – 6-1/4″ | 2-3/8″ API PIN |
| 6-1/2″ – 6-3/4″ | 2-3/8″ API PIN |
| 5-1/2″ – 6-3/4″ | 3-1/2″ API PIN |
| 6-7/8″ – 7-7/8″ | 3-1/2″ API PIN |
| 8″ – 9″ | 3-1/2″ API PIN |
| 9-1/8″ – 10-7/8″ | 3-1/2″ API PIN |
| 7-7/8″ – 8-7/8″ | 4-1/2″ API PIN |
| 9″ – 9-7/8″ | 4-1/2″ API PIN |
| 10″ – 10-7/8″ | 4-1/2″ API PIN |
| 11″ – 12-1/4″ | 3-1/2″ OR 4-1/2″ API PIN |
Package:
Using plywood cases and pallet for seaworthy to protect products and avoid the damagement during transportation by sea. Using cartons and plywood cases for air worthy to less the weight and save the freigth. Also we can customize package according to your special requests. Special mark is available.
Production time:
3-4 weeks after received payment in advance.
Transportation:
By air, by Express or by sea according to your requests.
SOLLROC is a leading manufacturer of rock drilling tools, like DTH hammers and bits, DTH drill pipes, RC hammers and bits, tophammer button bits, coupling, cross bits, drill rods located in Changsha, Hunan, China.
