Hi, this is Jacob on behalf of Arterlance Ind. Ltd. we're one of the most professional grinding stone manufacturers in China. And we'd like to know if someone there interesting on our quality stones, which are capable for your grinding job. More over our stones are much lower price then you bought, which might cut your cost on the business links to greatly maximum your profit. You may check out our official web at www.arterlance.com or inquire any price, ask me by [email protected] we’d love to answer and help, thanks.