Hardness test with a hand grinder
Hardness test with a hand grinder
(OP)
I read this from: http://www.marineengineering.org.uk/Default.htm
under the heading of repair and main engine
"hardness testing of the journal indicated results far in excess of maximums. Spot grinding using a hand grinder to 1.6mm indicated that hardness was still unacceptably high. As this was approaching maximum allowable decision taken to replace crankshaft"
I wish to know how to do a hardness test with hand grinder.




