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Home >> Products >> Geotechnical >> Self Drill Hollow Bar System >> Drill Bits

Drill Bits
Drill Bit Options
Drill bit type all sizes are mm
 25/13  32/2032/15 38/15
51/28
63/4376/56
 89/69103/83
Clay
 
 		 - 76
 76
 130
 130
 130
 130
 130 130
 - 100100  180180
180 180 180 180  
 - 130130
-  - -- 230 230 
Cross cut (2 grades*)

 
 		42 51 51 64 90 90
102 130 150 
- 76 76 76 102 102
115 - -
-
95
95 95 115
115
-
-
-
 Button bits (2 grades*)42
51
51
76
9090
100
130150
-
7676
90 115 115115--
Triple edge bit
- 51 51 767690
115130 150


Clay
  • Available in 42mm – 200mm
  • Suitable for soft clay
  • type soil







Triple Edge
  • Available in 51mm – 150mm
  • Suitable for chalks, marls and mudstones








Cross Cut
  • Available in 42mm – 130mm
  • Suitable for gravel, sandstone, limestone and most ground conditions








Button Bit
  • Available in 42mm – 150mm
  • Suitable for gravels, sandstone and soft rocks.








Triple Edge with Widia*
  • Available in 51mm – 150mm
  • Suitable for chalks, marls and mudstones








Cross Cut with Widia*
  • Available in 42mm – 130mm
  • Suitable for limestone, moderate rock?and?concrete








Button Bit with Widia*
  • Available in 42mm – 150mm
  • Suitable for limestone and hard rock, boulders and through concrete slabs.








Reducing Couplers
  • Drill bits can be manufactured as required, however reducing couplers are also available for adopting a larger drill bit thread onto a smaller bar.












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