Sunnen K3 NM45 CBN Hone Honing Stone 150 Grit NEW

Sunnen K3 NM45 CBN Hone Honing Stone 400 Grit NEW. Used for rough honing hardened steel. Package may have some shelf wear from being in a oily factory and in my garage. This came from a local factory that closed where I had worked a few years ago. I bought these stones at the liquidation auction. Shipped USPS standard mail.