Description
SINODRILLS 3 Wings Step Drag Bits
3 wings step drag bits are one-piece construction of alloy steel cast with tungsten carbide cutting tips and gauge sides to ensure longer life. It has 3 wings and 3 flushing holes. Compared with 4 wings, 3 wings step drag bits tend to drill faster and aggressively, whereas, are shorter lasting and less durable 3 wings step style drag bits will produce larger cuttings force than chevron style drag bits. Rotary table speed of step drag bits should be between 60 and 80 rpm with light weight on bit (WOB).
3 wings step drag bits are economical tools when drilling softer geological formations and shallower depths, they are primarily designed for soft tomedium formations, such as Clay, Loam, Silt , Mostsoft-to-medium soils that have some moisture, etc.
Features of 3 Wings Step Drag Bits
• A solid one-piece heat-treated, 4140 alloy steel body for bit strength & durability;
• CNC threaded machining for proper installation &use;
• Forgings are milled to better seat the carbide inserts.
• Select tungsten carbide inserts 5.5mm thick are standard.
• Relief is hand ground behind carbide inserts for maximum performance.
Applications of 3 Wings Step Drag Bits
Step drag bits are recommended for drilling in Mining, Exploration, Environmental, Water well, Geo Exchange, etc.
Parameters of 3 Wings Step Drag Bits
| 3 Wings Step Drag Bits | ||
| Diameter | Thread | |
| 2 to 17 1/2 inch | 50.8 to 444.5mm | Optional |
Note: The diameter and thread shown above are the usual size; other sizes are available upon request.
Thread size: 2 3/8” API Reg, 2 7/8” API Reg, 3 1/2” API Reg, 4 1/2” API Reg, 6 5/8” API Reg, 2” API IF, 2 3/8” API IF, 2 7/8” API IF, A Rod, N Rod, AW, BW, NW, AWJ, BWJ, NWJ.
