Description
        (Blue)
 stones are a natural development from the extremely popular EDM 
(orange) stones. Due to the inclusion of a small amount of cobalt, they 
are harder than EDM, maintaining their strength even in small section 
sizes, with good resistance to loading. Excellent for use in profiling 
or ultrasonic machines. EDM Blue stones break down slowly and cut fast. 
Very good for detailed work.
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