![](http://www.alamy.com/thumbs/6/531E8D3F-5C86-494E-953C-3E1063B9A258/TTCD7T.jpg)
Man grinding burrs or mushroom head from the end of a cold chisel using an electric drill fitted with a grinding wheel.
It is dangerous to use a cold chisel with a mushroom or burred head. The metal work hardens due to repeated impacts and becomes brittle. The burrs have to be removed to prevent pieces of steel fracturing and flying from the tool, potentially injuring anyone in the vicinity.
Size: 4291px × 4000px
Location: England, UK
Photo credit: © Washington Imaging / Alamy / Afripics
License: Licensed
Model Released: Yes
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