Features

1.delivery on time
2.certified by ISO,API
3.wide size code
4.high quality and best price

Advantages

1.Suitable for medium to medium hard formation of high Crushing Resistance (hard shale,sands,etc.)

2.Bit bearing is non-sealed roller bearing.

3.Hardfacing is applied on the shirttail,and carbide inserts for gage protection are pressed into the head OD.

4.Cone gage surface is reinforce with carbide compacts.