Precision T-Ruler for Drafting and Woodworking

This is a functional, 3D printable precision T-Ruler (T-Square) designed for woodworking, drafting, sketching, and precise layout work. It features a grid of precisely spaced guide holes that allow you to insert a pencil or mechanical pencil tip and draw perfect, straight parallel lines by smoothly sliding the ruler along the edge of your desk, paper, or workpiece. It also includes metric scale markings along the edge for quick and easy measuring.