TDS offerS a comprehensive range of DTH drill bits with all diameters of the current prevailing manufacturers’ hammer shank designs to match various drilling applications.All DTH drill bits are CAD designed, CNC manufactured for perfect bits body, and multiple heat-treated to enhance hardness, surface-compressed for fatigue resistance,thus to extend the product life for maximum wear and performance in the toughest of drilling conditions.
All bits are made from high quality alloy steels and fitted with premium quality tungsten carbide tips for superior penetration rate.
| Model | Thread Connection | OD(mm) | Rec.Hole Size | Shank Style | Working Pressure(Bar) |
| CD35 | API 2 3/8" Reg | φ82mm | φ90-φ105 | DHD3.5 CD35 | 1.0-1.5Mpa |
| CD45 | API 2 3/8" Reg | φ99mm | φ110-φ135 | Cop44 DHD340 CD45 | 1.0-2.5Mpa |
| CSD4 | API 2 3/8" Reg | φ99mm | φ110-φ135 | SD4 CSD4 | 1.0-2.5Mpa |
| CQL40 | API 2 3/8" Reg | φ99mm | φ110-φ135 | QL40 CQL40 | 1.0-2.5Mpa |
| CD55 | API 2 3/8" Reg API 3 1/2" Reg | φ125mm | φ135-φ155 | Cop54 DHD350R CD55 | 1.0-2.5Mpa |
| CSD5 | API 3 1/2" Reg | φ125mm | φ135-φ155 | SD5 CSD5 | 1.0-2.5Mpa |
| CQL50 | API 3 1/2" Reg | φ125mm | φ135-φ155 | Cop54 QL50 CQL50 | 1.0-2.5Mpa |
| CD65 | API 3 1/2" Reg | φ148mm | φ155-φ190 | Cop64 DHD360 CD65 | 1.0-2.5Mpa |
| CSD6 | API 3 1/2" Reg | φ148mm | φ155-φ190 | SD6 CSD6 | 1.0-2.5Mpa |
| CQL60 | API 3 1/2" Reg | φ148mm | φ155-φ190 | Cop64 QL60 CQL60 | 1.0-2.5Mpa |
| CD85 | API 4 1/2" Reg | φ185mm | φ195-φ254 | Cop84 DHD380 CD85 | 1.0-2.5Mpa |
| CSD85 | API 4 1/2" Reg | φ185mm | φ195-φ254 | SD8 CSD8 | 1.0-2.5Mpa |
| CQL80 | API 4 1/2" Reg | φ185mm | φ195-φ254 | QL80 CQL80 | 1.0-2.5Mpa |
| CSD10 | API 4 1/2" Reg API 5 1/2" Reg API 6 5/8" Reg | φ225mm | φ254-φ311 | SD10 CSD10 | 1.0-2.5Mpa |
| CN100 | API 6 5/8" Reg | φ225mm | φ254-φ311 | NUMA100 CN100 | 1.0-2.5Mpa |
| CSD12 | API 6 5/8" Reg | φ275mm | φ305-φ445 | SD12 CSD12 | 1.0-2.5Mpa |
