Three-Wing Conventional Scraper Non-Coring Drill Strong Wear-Resistant Mining Bits
Three-Wing Conventional Scraper Non-Coring Drill Strong Wear-Resistant Mining Bits
Three-Wing Conventional Scraper Non-Coring Drill Strong Wear-Resistant Mining Bits3 wings alloy scraper 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 alloy scraper 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 .
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 ,Most soft-to-medium soils that have some moisture, etc.
PDC Drag Bits Specifications:
Size (Inch) | Size (mm) | Std. API thread | Approximate weight (kgs) |
| 2-3/8 | 60 | Non-std. | 1.3 |
| 2-1/2 | 63.5 | Non-std. | 1.5 |
| 3 | 76 | Non-std. | 2 |
| 3-1/2 | 89 | Non-std. | 3.5 |
| 3-7/8 | 98.4 | 2-3/8" | 5 |
| 4 | 102 | 2-3/8" | 5.5 |
| 4-1/4 | 108 | 2-3/8" | 6.5 |
| 4-5/8 | 117.5 | 2-7/8" | 8 |
| 5-1/4 | 133 | 2-7/8" | 11 |
| 5-5/8 | 142.9 | 3-1/2" | 13 |
| 5-7/8 | 149.2 | 3-1/2" | 14 |
| 6 | 152 | 3-1/2" | 17 |
| 6-1/8 | 155.6 | 3-1/2" | 18 |
| 6-1/4 | 159.3 | 3-1/2" | 20 |
| 6-1/2 | 165 | 3-1/2" | 22 |
| 7-1/2 | 190.5 | 4-1/2" | 31 |
| 7-5/8 | 193.7 | 4-1/2" | 32 |
| 7-7/8 | 200 | 4-1/2" | 35 |
| 8-1/2 | 215.9 | 4-1/2" | 42 |
| 8-5/8 | 219 | 4-1/2" | 44 |
| 8-3/4 | 222.3 | 4-1/2" | 45 |
| 9-1/2 | 241.3 | 6-5/8" | 60 |
| 9-5/8 | 244.5 | 6-5/8" | 65 |
| 9-3/4 | 247.7 | 6-5/8" | 70 |
| 9-7/8 | 250.8 | 6-5/8" | 75 |
| 10-5/8 | 270 | 6-5/8" | 82 |
| 11-5/8 | 295 | 6-5/8" | 90 |
| 12-1/4 | 311.2 | 6-5/8" | 98 |
| 13-5/8 | 346.1 | 6-5/8" | 134 |
| 15-1/2 | 394 | 6-5/8" | 190 |
| 16 | 406.4 | 6-5/8" | 200 |
| 17-1/2 | 444.5 | 7-5/8" | 251 |
| 20 | 508 | 7-5/8" | 300 |
| 24 | 610 | 7-5/8" | 600 |
| 26 | 660.4 | 7-5/8" | 700 |
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