↑ Top of page
You are here: Home Products Tools Striking Tools

Striking Tools


General Information
All versions and styles of the RENNSTEIG striking tools comply with the DIN standards. Made of hardened chrome vanadium steel, the forged chisels and punches are quenched and tempered as a whole to guarantee a good resiliency and to resist hard working stress, thus offering a long service life. Owing to the hardened striking heads acc. to DIN standard, no splintering and “mushroom” heads will occur. The conical and parallel shanks of the punches are polished, chisel blades are offered with either polished or lacquered (reduced price) surface. Shanks of all striking tools are dip-coated.

Health and safety regulations
Due to high risk of being hurt by improper use of hand striking tools, all people involved should absolutely obey the following safety regulations.

  • always wear safety goggles
  • select the right striking tool and an appropriate hammer size for best possible application
  • avoid working on hardened material exceeding 40 HRC for danger of being seriously hurt by splintering
  • avoid the striking head being soiled by lubricants
  • do thoroughly grind away the burrs occuring on the striking head at regular intervals
  • before working, check the cutting edge of the tool, work-worn cutting edges have to be reground
  • do only use hand striking tools for what they are made for

Instructions for aftertreatment
As RENNSTEIG striking tools are quenched and tempered as a whole, repeated treatment of the cutting edge will be no problem in case the following is taken into consideration. Two different aftertreatment procedures have to be applied:

  • 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 of cutting edge:
    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.