GETECH Rock Roller Bits
Available Sizes
  • TC Rock Roller Bits: 7 7/8 to 14 1/2
  • Milled Tooth Rock Roller Bits: 7 7/8 to 14 1/2
For more details about this Drilling Rig Contact
http://getechindia.dthrotarydrilling.com/Tools-Accessories/Rock-Roller-Bits.html