Specification
R28
| Drill bit | Diameter | Weight(kg) | |
| mm | Inch | ||
| Drill bit1 | 38 | 1 1/2” | 0.5 |
| 41 | 1 5/8” | 0.6 | |
| 43 | 1 11/16” | 0.7 | |
| 45 | 1 3/4” | 0.7 | |
| Drill bit2 | 38 | 1 1/2” | 0.5 |
| 41 | 1 5/8” | 0.6 | |
| 43 | 1 11/16” | 0.7 | |
| 45 | 1 3/4” | 0.7 | |
| Coupling | Characteristics | Diameter | Length | Weight(kg) | |||
| mm | Inch | mm | Inch | ||||
| Coupling1 | R28 | 39 | 1 1/2” | 150 | 6” | 0.9 | |
| Coupling2 | R32/R28 | 45 | 1 3/4” | 170 | 6 11/16” | 1.3 | |
R32
| Drill bit | Diameter | Weight(kg) | |
| mm | Inch | ||
| Drill bit1 | 45 | 1 3/4” | 0.8 |
| 48 | 1 7/8” | 0.9 | |
| 51 | 2” | 1.0 | |
| 57 | 2 1/4” | 1.2 | |
| 64 | 2 1/2” | 1.5 | |
| Drill bit2 | 41 | 1 5/8” | 0.6 |
| 45 | 1 3/4” | 0.7 | |
| 48 | 1 7/8” | 0.9 | |
| 51 | 2” | 1.0 | |
| Coupling | Characteristics | Diameter | Length | Weight(kg) | |||
| mm | Inch | mm | Inch | ||||
| Coupling1 | R32 | 45 | 1 3/4” | 160 | 6” 1/4” | 1.0 | |
| Coupling2 | R38/R32 | 54 | 2 1/8” | 180 | 7 9/64” | 1.1 | |
R38
| Drill bit | Diameter | Weight(kg) | |
| mm | Inch | ||
| Drill bit1 | 64 | 2 1/2” | 1.7 |
| 70 | 2 3/4” | 1.9 | |
| 76 | 3” | 2.5 | |
| 89 | 3 1/2” | 3.7 | |
| Drill bit2 | 64 | 2 1/2” | 1.7 |
| 70 | 2 3/4” | 1.9 | |
| 76 | 3” | 2.5 | |
| 89 | 3 1/2” | 3.7 | |
| Coupling | Characteristics | Diameter | Length | Weight(kg) | ||||
| mm | Inch | mm | Inch | |||||
| Coupling1 | R38 T38/R38 | 54 | 2 1/8” | 190 | 7 1/12” | 1.8 | ||
T38
| Drill bit | Diameter | Weight(kg) | |
| mm | Inch | ||
| Drill bit1 | 64 | 2 1/2” | 1.7 |
| 76 | 3” | 2.5 | |
| 89 | 3 1/2” | 3.7 | |
| 102 | 4” | 4.6 | |
| Drill bit2 | 64 | 2 1/2” | 1.7 |
| 76 | 3” | 1.9 | |
| Coupling | Characteristics | Diameter | Length | Weight(kg) | ||||
| mm | Inch | mm | Inch | |||||
| Coupling1 | T38 | 54 | 2 1/8” | 190 | 7 1/12” | 1.8 | ||
| Coupling2 | T45/T38 | 63 | 2 31/64” | 195 | 7 11/16” | 2.8 | ||
T45
| Drill bit | Diameter | Weight(kg) | |
| mm | Inch | ||
| 76 | 3” | 2.2 | |
| 89 | 3 1/2” | 3.7 | |
| 102 | 4” | 4.4 | |
| 115 | 4 1/2” | 6.3 | |
| Drill bit1 | 76 | 3” | 1.9 |
| 89 | 3” 1/2” | 3.7 | |
| Coupling | Characteristics | Diameter | Length | Weight (kg) | ||||
| mm | Inch | mm | Inch | |||||
| Coupling1 | T45 | 63 | 2 1/2” | 210 | 8 1/4” | 2.9 | ||
| 66 | 2 19/32” | 210 | 8 1/4” | 3.2 | ||||
| Coupling2 | T51/T45 | 72 | 2 27/32” | 218 | 8 19/32” | 4.4 | ||
T51
| Drill bIT | Diameter | Weight(kg) | |
| mm | Inch | ||
| 89 | 3 1/2” | 3.8 | |
| 102 | 4” | 5.2 | |
| 115 | 4 1/2” | 6.7 | |
| 127 | 5” | 8.0 | |
| Coupling | Characteristics | Diameter | Length | Weight(kg) | ||
| mm | Inch | mm | Inch | |||
| Coupling1 | T51 | 76 | 3” | 225 | 8 7/8” | 4.7 |
Advantage
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