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Fore polingAnchors Drilling Bits R51/110ESS Self Drilling Rock Anchors for Quarry
Specifications of our SDA drilling bits R51/110mm
Thread:R51
Diameter:150mm
Left Hand
Hardness:HRC48-HRC55
Processing Type:Casting
Button No.20pcs
Applications in Tunneling & Ground Engineering:
Fore poling, Micro injection pile,Face stabilization or Temporary support anchor
Bits type:
EX: Hardened cross bit for loose to medium dense ground conditions
ES: Hardened button bit for unconsolidated rock with boulders
EC: Hardened arch bit for unconsolidated soil with small boulders
EY: Hardened 3 cutters bit for loose to medium dense ground conditions
EXX: T.C cross bit for soft to medium rock formations
ESS: Button bit with T.C inserts for medium rock formations
ECC: T.C arch bit for soft to medium rock formations
EYY: T.C 3 cutters bit for soft to medium rock formations
Clay bits: Casted clay bit for Soft clay and soil
Drill Bits:
| Anchor Type | Bit Size | Front Design |
| R25N | R25-42mm, R25-51mm | Cast Cross Bits, Steel Cross Bits, Steel 3-Cutter Bits, TC Cross Bits, TC 3-Cutter Bits, Steel Arched Bits, TC Arched Bits, Steel Button Bits, TC Button Bits |
| R32N & R32S | R32-51mm, R32-76mm | |
| R38N | R38-76mm, R38-90mm, R38-115mm | |
| R51L & R51N | R51-85mm, R51-100mm, R51-115mm | |
| T76N & T76S | T76-130mm |
Related anchors bolts:
| Types | Outer Diameter | Average Internal Diameter | Effective External Diameter |
| mm | mm | mm |
| R25N | 25 | 14 | 23 |
| R32N | 32 | 18.5 | 29.1 |
| R32S | 32 | 15 | 29.1 |
| R38N | 38 | 19 | 35.7 |
| R51L | 51 | 36 | 47.8 |
| R51N | 51 | 33 | 47.8 |
| T76N | 76 | 51 | 76 |
| T76S | 76 | 45 | 76 |
| Length: 1m, 1.5m, 2m, 2.5m, 3m, 3.5m, 4m, 4.5m, 5m, 5.5m, 6m | |||