Builder, by KA Designs, is a SUPER fun font for the analytical, math/science person in life! Super technical and ridiculously fun, use builder for anything teacher, for sure, and let's not forget Dad, Grandpa, or anyone who loves the little details and creating something from nothing! This font comes in: 6.5mm Shank sizes: 5/16" Sets available: Unicase, Numbers, Symbols (03) -- Question Mark, Exclamation Point, Comma, Period My Two Cents: Builder is a super detailed font, and is recommended for soft metals only! All of my examples in this font are in aluminum, and it stamps beautifully in soft metals. The details are incredible! In my blog post of the classification of fonts, this font is definitely in the FUN category!