STAROCKDRILL’S high quality RC drill bits are specifically designed to work with RC Hammers. 

We are manufactured with reliable quality, long service life and smooth flushing effect. In addition to outstanding performance, 

these bits eliminate sample contamination problem, thanks to special sealing mechanism. 

And the most commonly used RC drill bits are 114mm ~ 203mm (4 1/2 ~ 8 inches) in diameter. 

They are widely used in application like geologic exploration, oil wells and ore mining, etc..

Product Features:

1.The reverse circulation DTH hammer provides large impact of torque and high efficiency of energy transfer while ensuring saving energy consumption.

2.It delivers high drilling efficiency due to strong capability of removing rock dust and flakes.

3.Compressed air and reverse-flow fluid medium are all transported in the sealed double-wall drilling tool,

thus avoiding direct contact with the borehole wall and maintaining stability of the wall.

The reverse circulation hammer shows unique effect to complex and leakage formations.

4.Rock sample will be carried by the fluid medium and directly go back to the ground through the center hole of the drilling tool. 

It will not touch the wall of borehole, ensuring high quality of ore sample with no pollution.

5.Rock dust and flakes will be cleaned and discharged to a specific position through the center hole for central disposal, 

which ensured a prevention of dust and pollution, leads to improve working environment and enhance a longer service life of drilling equipment and attendance rate.

6.The reverse circulation DTH hammer comes with simple structure that accounts for its easy maintenance and handy worn parts replacement.