Three Wings Drag bits

1.Drag Bits are made according to API Standard or NROD Thread standard or others.
2.Various Step and chevron Drag bits are available from 2inch to 17 1/2 Inch.\
3.There are big markets in USA,Canada,Colombia,Australia and so on.
4.There is very good feedback because of the quality and price.
5.Different Drag bits can be made according to customers’ drawings or samples.