Hey there Charlie,

You would be looking for the "waffle" pattern zim if it looks like tile. There are stamp sets, AFV Club makes a nice tool that has 2 wheels (2 different sets of zim) as well as the ends of the tool make the waffle pattern. I believe ScottG bought one for the KingTiger he was going to do, if you asked nicely, I am sure he would take a picture and post what the tool looks like. It runs about $14 for the tool.

Alternatively, I can also get the Cavalier set for that kit for $22.00