Roughness of ground surface after grinding with vitrified
2010820 ensp 0183 ensp increased by one to two hardness degrees when longer grinding tool life is a priority In the case of thinner grinding wheels finer grit of higher hardness should be selected M a t e r i a l h a r d n e s s Hardness Up to 42 HRc 42 to 50 HRc 50 to 57 HRc Over 57 HRc G X H X I X J X K X
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