Drilling Drag Bit

Short Description:

1, A solid one piece heat treated, 4140 alloy steel body for bit strength & durability;

2, CNC threaded machining for proper installation &use;

3, Forgings are milled to better seat the carbide inserts.

4, Select tungsten carbide inserts 5.5mm thick are standard.

5, Relief is hand ground behind carbide inserts for maximum performance.


Product Detail

Product Tags

Product overview导航栏

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 aggressive, whereas, are shorter lasting and less durable.3 wings step style drag bits will produce larger cuttings force than chevron style drag bit. 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 primarilydesigned for soft tomedium formations, such as Clay, Loam, Silt ,Mostsoft-to-medium soilsthat have some moisture, etc. And also step drag bits are recommended for drilling in Mining, Exploration, Environmental, Water well, Geo Exchange, etc.

Specification导航栏

Drag bits
Type Suitable formation Diamter
2 wings air flush step drag bit Medium to Soft 95.3mm(3 3/4 inch)
3 wings air flush step drag bit Medium to Soft 95.3mm(3 3/4 inch)
3 wings air flush chevron drag bit Medium to hard 95.3mm(3 3/4 inch)
3 wings full flush step drag bit Medium to Soft 95.3mm(3 3/4 inch)
3 wings step drag bit Medium to hard 50.8 to 444.5mm2 to 17 1/2 inch)
3 wings chevron drag bit Medium to hard 63.5 to 304.8mm(2 1/2 to 12 inch)
4 wings step drag bit Medium to Soft 165.1 to 444.5mm(6 1/2 to 17 1/2 inch)
4 wings chevron drag bit Medium to hard 165.1 to 304.8mm(6 1/2 to 12 inch)
Claw bit Fast penetration  
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.


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