- Buyer's guide
The patented UNIHammer rock tool provides more distance per hour, per day, on your bores than ever before.
A variety of custom-designed UNIHammer bits fit directly on the end of any directional drilling hammer allowing for more aggressive steering though dirt, rock or even granite. Specific metal compound ensures longer bit life and housing life. 847.955.0050, www.robbins-hdd.com