14
Hammer drills
Drillingmachines
Cordlesstools
Electric impact wrenches
Shears / Nibblers
Grinders
Saws
Planer / Router
Vacuumcleaners
Hammer drills
The electro-pneumatic hammer drills NAREX are intended mainly for percussion (impact)drilling into
solid building materials, e.g. reinforced concrete, aggregate-filled concrete, precast concrete products
or natural stone.
Effective drilling is guaranteed by the electro-pneumatic impact mechanism which is designed – unlike
the impact drilling machines – by a “cylinder-piston-ram-tool” system and by a simple clamping system
enabling wireless energy transfer from the device to the tool tip and its linear reverse motion. The applied
system leads to high penetration of the clamped tool without the necessity to apply a higher force, even
when drilling with high-diameter tools which are absolutely beyond the capability range of the impact
drilling machines.
The hammer drills designated as “combined” are equipped by the mechanism for switching-off the
rotating tool movement and for utilization of the complete energy of the device for chopping.
