Thanks everyone. Mick, I think the 150 watt light bulbs in my dads garage makes it hard for me to see sparks on the small grinder, but I didn't notice any like I can see a stainless piece of pipe throw so thats why I thought they were brass at first. How think would chrome layer be and would chrome throw tons of sparks or just one or two? I know there was a spark chart on here somewhere I remember I'll have to look that back up again.