A.Apply to medium hard or hard formation B.Low price C.Strict quality control D. retrench the cost

Cross Drill Bit Tools1, Factory supply drill bit2, Best steel made 3, One set drill bit can use at least 3 months.

4, Package: Standard package of export

We can supply these size of drill bits:

30mm, 32mm, 34mm, 36mm, 38mm, 40mm, 42mm, 46mm, 50mm, 55mm, 60mm ,65mm, 70mm,80mm

Cross Drill Bit Picture:

cross drill bit tools