Sell drill bit core drill

详情

  Model: various kinds and according to the requirements of customers

2  Material: ally steel, tungsten carbide insert

3  Color: can be as you like                                        

4  Size: from any other regular size available from1.8"(*5 mm)to *6"(**0 mm) 

5   Moq:1 piece

6   Bearing sealed: metal sealed (HJ) rubber sealed (HA) not sealed (W)

7  Formation: soft formation, soft to medium hard formation, medium hard formation ,hard     formation,very hard