In article ,
"peter" wrote:

(snip)
Can anyone think of similar tool that would fit into 1/32 grout line and is
strong? The commercial grout blade sold at home depot are way too thick to
even fit into the grout lines. For this reason, I also cannot use dremel
tool.

Have you looked for the tiny little stick-type diamond bit set for the
Dremel? Comes in a 20-pc set (made both by Dremel and the big box store
brands), and there are some incredibly tiny/thin cylinder and tapered
point bits that would almost certainly work in that grout line.

AJS