Effective breaking requires that the chisel remain sharp to penetrate hard materials. A key weakness of all chisels is the necessity to organize a re-sharpening process when getting blunt, It is very hard to re-sharpen a professional chisel on the construction site. You may need to sharp the chisel at a professional service station, this process causes significant service and process costs. Self sharpening chisels ensures the cutting edges remain sharp and extends the chiseling life time. With a higher material removal rate and no repeated re-sharpening these new steels reduce downtime and are significantly more cost effective.
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