XINLE provides customers with superior carbide step drill bits in a size range from 64mm to 130mm. carbide step drill bits are typically used in drilling soft rock layers such as sand, clay, and so on. They are not suitable for hard rock drilling.
Parameters: Step Type Reaming BitsPart NO. | Bit Diameter | Thread | |
mm | in | ||
SJ1 64-32R 40T | 64 | 2-1/2 | R32 T40 |
SJ1 70-38R 40T | 70 | 2-3/4 | R38 T40 |
SJ1 75-38R 40T | 75 | 2-5/16 | R38 T40 |
SJ1 80-38R 40T | 80 | 3-5/32 | R38 T40 |
SJ1 85-38R 40T | 85 | 3-11/32 | R38 T40 |
SJ1 90-38R 40T | 90 | 3-9/16 | R38 T40 |
SJ1 100-40T 45T | 100 | 4 | T40 T45 |
SJ1 115-40T 45T | 115 | 4-17/32 | T40 T45 |
SJ1 130-73T | 130 | 5+3/16 | T73 |