Basical ParameterBit Size12 1/4"Number of Blade7Primary Cutter Size16mmNozzle Qty/Type9Gauge Length80mmConnection6 5/8 API PINOperating ParameterRotary Speed(r/min)80~300Weight on Bit(KN)145~170PDC DRILL BITS - STANDARD CONNECTION SIZES BIT SIZE(INCH)API REGULAR PIN(INCH)RECOMMENDED MAKE UP TOR......
| Basical Parameter | ![]() | |
| Bit Size | 12 1/4" | |
| Number of Blade | 7 | |
| Primary Cutter Size | 16mm | |
| Nozzle Qty/Type | 9 | |
| Gauge Length | 80mm | |
| Connection | 6 5/8 API PIN | |
| Operating Parameter | ||
| Rotary Speed(r/min) | 80~300 | |
| Weight on Bit(KN) | 145~170 | |
| PDC DRILL BITS - STANDARD CONNECTION SIZES | ||
| BIT SIZE(INCH) | API REGULAR PIN(INCH) | RECOMMENDED MAKE UP TORQUE(KN.M) |
| 4 1/2 to 4 3/4 | 2 7/8 API | 6.0~7.5 |
| 5 1/8 to 7 3/8 | 3 1/8 API | 9.5~12 |
| 7 1/2 to 9 3/8 | 4 1/2 API | 16.0~22 |
| 9 1/2 to 14 1/2 | 6 5/8 API | 38~43 |
| 14 5/8 to 17 1/2 | 7 5/8 API | 46~54 |
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.
The Diamond PDC drill bit designed to run at high penetration rates even in applications that call for higher blade and cutter counts. Its unique cutting structure layout adds another dimension to bit stability and smooth running by combining the penetration rate potential of traditional "single set" cutter layouts with the life extending features of a "plural set" cutter layout. The result is a bit that runs up to 20 percent faster than conventional PDC bits with minimum bit wear.



B, N, H, P Locking Coupling Tanged, Adapter Coupling
B, N, N-3, H, H-3, P Fluted/Slotted Core Lifter
B, N, H, P Recovery Tap Right Male Left Male
B, N, H, P Surface Set/Impregnated Diamond Drill Bit Core Drill Bit
Od19.05*13.2mm Heat-Resistant Polycrystalline Diamond Layer PDC Drill Bits
Hjg DTH Bit - HD85 ( DHD380 , COP84)