3 Wings Step Drag Bit 2-17.5 Inch Diameter with PDC Cutter Inserts for Medium-Hard Formation Drilling
Manufactured from forged high-quality alloy steel with PDC cutter inserts, these drag bits utilize advanced welding technology and multiple precision heat treatments to deliver exceptional penetration rates and extended service life in demanding drilling conditions.
| Size | Type Pin | Weight (lbs.) |
|---|---|---|
| 3 7/8" - 4 3/4" | 2 3/8" REG Pin | 6 |
| 4 7/8" - 5 1/8" | 2 3/8" REG Pin | 7 |
| 5 1/4" - 5 1/2" | 2 3/8" REG Pin | 8 |
| 4 5/8" - 5" | 2 7/8" REG Pin | 10 |
| 5 1/8" - 5 1/2" | 2 7/8" REG Pin | 11 |
| 5 5/8" - 6 1/4" | 3 1/2" REG Pin | 18 |
| 6 1/2" - 6 3/4" | 3 1/2" REG Pin | 19 |
| 7" - 7 1/2" | 3 1/2" REG Pin | 21 |
| 7 5/8" - 8"-12 1/4 | 3 1/2" REG Pin 4 1/2 6 5/8 | 23 |
These one-piece construction bits feature alloy steel cast with tungsten carbide cutting tips and gauge sides for extended durability. The 3-wing design with 3 flushing holes provides faster, more aggressive drilling compared to 4-wing alternatives.
Available in diameters from 2 to 17 1/2 inches (50.8 to 444.5mm) with optional thread configurations.
2 3/8" Reg, 2 7/8" Reg, 3 1/2" Reg, 4 1/2" Reg, 6 5/8" Reg, 2" API IF, 2 3/8" IF, 2 7/8" IF, A Rod, N Rod, AW, BW, NW, AWJ, BWJ, NWJ.
- Solid one-piece heat-treated 4140 alloy steel body for superior strength and durability
- CNC threaded machining ensures proper installation and reliable performance
- Precision-milled forgings for optimal carbide insert seating
- Standard 5.5mm thick select tungsten carbide inserts
- Hand-ground relief behind carbide inserts for maximum drilling efficiency
Ideal for medium to hard formations containing rock, these bits excel in oil field applications, mining, exploration, environmental projects, water wells, and geo-exchange systems. Recommended operating parameters include rotary table speeds between 60-80 RPM with light weight on bit (WOB).
Crossing Bit, a leading manufacturer of PDC bits and tricone bits in northern China, exports high-quality drilling tools to over 30 countries. Specializing in directional drilling optimization, our products offer exceptional stability, durability, and high rate of penetration for complex drilling operations.
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