RENNSTEIG Striking Tools - portalnarzedzi.pl

Shank Chisels
The RENNSTEIG range
of Shank Chisels
The shank chisels made by RENNSTEIG serve the
ranges of electric and pneumatic hammers of
almost all important manufacturers.
The tools are used for break and demolition works as
well as general chisel work in industry and at home.
The right selection of shank chisel , correct length
and hammer type guarantee an optimum power
transmission from the hammer via the chisel to the
material to be worked with minimum effort for the
operator.
RENNSTEIG shank chisels meet or even exceed
high quality standards. By using high-grade materials
and applying sophisticated technologies for the
manufacture and heat treatment, the shank chisels
are featuring a high serviceability.
Aftertreatment, i.e. regrinding or reforging, can be
done without any problems.
Shank chisels are subject to high stress. In order to
extend the service life of the tools, the below instructions
should be followed
regular and repeated greasing of the shank end to
be fitted into the hammer
avoidance of chisel breaking caused by excessive
space between chisel and the part of the hammer
the chisel is fitted into
selection of correct position towards the working
plane
avoidance of overheating both at the shank end
and the cutting edge
short impact intervals and gradual treatment of
the material to be worked
regular regrinding of the worn cutting edge
As for health and safety standards and to avert accidents
when working with electric and pneumatic hammers please
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always wear safety goggles (to avoid eye injuries that
might be caused by splintering material)
short work intervals to not overstrain the wrists
working with a perfect cutting edge in order to prevent
recoils, breaking of the tools as well as to avoid
overstraining of joints
Due to an inevitable wear and tear of the cutting edge when
working with shank chisels, the aftertreatment of the tools is
a matter of great significance.
Acc. to the degree of wear and tear on the cutting edge, two
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regrinding
(in case of lower wear and tear of cutting edge )
- in short intervals
- avoid excessive grinding heat in order to avoid
as a consequence reduction of hardness and possible
grinding cracks
- ensure water cooling during regrinding process
reforging
in case of heavy wear and tear by obeying the
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forging
heating of the forging range (cutting edge + 30mm)
up to a forging temperature of 950° to 1050°C
hardening
in accordance with the material used,
heating up to hardening temperature (790° to 880°C)
and immediate quenching in oil afterwards
tempering
heating up to tempering temperature
of approx. 280° C
After heat treatment the cutting edge has to be reground.
Reforging and the subsequent heat treatment should only be
done by trained and experienced people.
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