Indonesian brand down-the-hole drill rig price

In the application of drilling machinery, the air-leg rock drillcan only drill small-aperture, medium-shallow blast holes; the heavy-duty rail-type rock drill can also drill deep blast holes through the post, but the en. [pdf]

Chinese brand down-the-hole drill factory address

Jiucaiyuan road, Furong District, Changsha, Hunan,China Worktime: 9:00-6:00 (Beijing time) Business Phone : 86-731-85551632 (Working time) 86-731-85551632 (Nonworking time) FAX : 86-731-85551635 Email : [email protected] View More >> [pdf]

Rigid drill chuck removal

 Insert a 5/16 in. or larger hex key into the chuck of the drill and tighten the chuck jaws securely.  Tap the hex key sharply with a mallet in a clockwise di- rection. This will loosen the screw in the chuck for easy removal.  Open the chuck jaws and remove the hex key. [pdf]