printtest2.tex

\RequirePackage{luatex85}
\documentclass[tikz]{standalone}
\begin{document}
\begin{tikzpicture}[scale=2.54]
\draw[step=0.5, very thick] (0,0) grid (8.5,11);
\draw[step=0.1] (0,0) grid (8.5,11);
\end{tikzpicture}
\end{document}