1. You will need to use " carbide concrete / masonry hammer drill bits ". 2. As to the power tool, for getting through concrete you need a hammer drill . 3. The hammer drill was lighter, speedier, and used less air than the reciprocating drill. 4. :To drill a hole in cured concrete you will need to purchase a Hammer Drill . 5. Hammer drills of both working principles are well suited for drilling holes in masonry or stone.6. In contrast to the cam-type hammer drill , a rotary / pneumatic hammer drill accelerates only the bit. 7. A typical application for a hammer drill is installing electrical boxes, conduit straps or shelves in concrete. 8. Drill ( hammer drill with 18 mm chuck ) and masonry bit purchased in local hardware store. 9. In contrast to the cam-type hammer drill, a rotary / pneumatic hammer drill accelerates only the bit. 10. The percussion-technology hammer drill could drill at more than a day by using four hammers instead of one.
