Used tricone bits 1Soft
formations(**7, **7, **7, **7)
Features large chisel-shaped inserts to provide the highest
penetration rate in the softest formations such as shales, clays,
limestone and sands.
2Soft to medium formations(**7, **7)t to Medium FonsDesigned to
drill effectively in formations such as hard limestone, dolomite,
hard sands, and other formations with hard cherty.
3Medium to hard formations(**7)
For extremely hard formations such as chert, granite, flint, and
taconite. Features short, closely-spaced inserts to ensure maximum
penetration rate and wear resistance.
If you have interests,don't hesitate to contact me,thanks.
Sunny
drillbits2 at zkdrilling dot com
MSN:triconebit1 at hotmail dot com
Skype:triconebit
