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  • drill rod

    at what point does drill rod melt? I've been told that CRS starts throwing off sparks at 1500.

    Isn't there a way to tell the difference by watching what kind of sparks each type throws off on a grinding wheel?
    Jerry Crawford
    I, also, have tools I don't know how to use

  • #2
    I was once given a pile of centerless ground steel rod, 1/8" to 1/2" diameter. I was told some was drill rod, some was the sort of slightly case hardened shaft places like PIC design sells. To tell the difference I just heated the end of each red hot and quenched them, a file quickly showed which was which.

    Joe

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