9 new connecting rod mandrel stones, not Sunnen. The gray stones are marked JB Manufacturing and were in Kwikway boxes. The 4 on the left look like a medium grit, the 2 on the right look like a fine grit. The white stones have CR A150-J printed on them. $50 for all plus UPS from zip 24541.
CR mandrel stones
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CR mandrel stones
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http://www.motionmachineinc.com/
https://www.youtube.com/watch?v=ZgIZbveknDs