Drillers should consider:
1> Matrix body or steel body.
2> Cutter sizes and blades quantity.
3> Double rows cutters or single row.
4> Spiral or normal gauge protection, gauge length, gauge protection materials.
5> Nozzles.
Application
Medium-hard to hard formations with low compressive strength, such as hard shale, limestone, sandstone, dolomite, hard gypsum,
marble, etc.
Features
The M1375 is a matrix body PDC bit with 7 curved blade with back-reaming and spiral gauge protection. Optimized Hydraulic design
and enhanced cleaning and cooling effects of the bits to prevent bit from balling.
Product Specification of PDC Drill Bits M137 for Very Hard Rocks Drilling
| Number of Blades | 7 |
| Primary Cutter Size | 13mm |
| Nozzle Qty. | 6 NZ |
| Gauge Length | 2.2 Inch |
Operating Parameters
| RPM(r/min) | 60~260 |
| WOB(KN) | 20~100 |
| Flow Rate(lps) | 22~35 |