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| Place of Origin | China |
| Brand Name | ROSCHEN |
| Certification | API |
| Model Number | 12 1/4" 6 Blades |
12 1/4"PDC Bit with 6 Wings Drilling Tools Downhole Tools
1. Specification Basical Parameter
| Bit Type | 12 1/4" |
| Number of Blade | 6 |
| Primary Cutter Size | Ø19MM ; Ø16MM |
| Gauge Length | 2.5~4" |
| Connection | 6-5/8" API REG |
Recommended Diamond and PDC Bit Make-up Torque
| Size of Bit | Size&style API Rotary connection | Recommended torque | |
| inch | inch | kft.lbs | KN.m |
| 3-11/16"~4-1/2" | 2-3/8" Reg | 2.4~2.7 | 3.3~3.6 |
| 4-17/32"~5" | 2-7/8" Reg | 4.7~5.1 | 6.3~6.9 |
| 5-1/32"~7-3/8" | 3-1/2" Reg | 7.7~8.4 | 10.4~11.4 |
| 7-13/32"~9-3/8" | 4-1/2" | 17.8~19.5 | 24.1~26.5 |
| 9-13/32"~14-1/2" | 6-5/8" | 38.2~42.0 | 51.7~56.9 |
| 14-9/16"~26" | 7-5/8" | 60.9~67.0 | 82.5~90.8 |
2. PDC ADVANTAGES
PDC Drill Bits are equipped with Hardened Alloy Steel base material;High performance PDC-Cutters;Carbide and Diamond gauge protection;Carbide/Diamond Shock Studs;Threaded or Plain Carbide Nozzles for Flushing.
Above features are subject to changes and modifications according to customers' requirements.
Diamond bits work across an extended range of weight on bit, penetrating quickly even at low bit weights in softer rock. When formations firm up, the bits can take added weight with a smooth torque response and maintain higher than competitive rates of penetration. The technology is a departure from traditional plural set bits that require higher weights to drill even in soft rock, and are generally durable, but slow, even in harder rock. Traditional plural set bits also can produce an erratic torque response when taking additional weight.
We have rich experience in this field of Roller Tricone Bits, PDC Drill Bits, Oil Drilling Toosl, Rock Drilling tools, DTH hammers and bits for 60 years.
Owing to high quality, professional serivce and competitive price, we have gotten good reputation from our customers from all over the world, such as US, Canada, France, Spain, Italy, South Africa, South Latin Amercia, Brasil, Saudi Arabia, UAE, Iran, Malaysia, Australia, etc.
For more information please contact:
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschen.com ; http://www.roschen.net
http://www.roschen.cn ; http://www.roschendrill.com
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