Founded in 1983 by designer and craftsman John Economaki, Bridge City Tools has long been known for its often unique and always aspirational tools.
Accurate to within 0.002" over the length of the blade, these are dependable squares for layout, machine set-up or checking cuts.
Lightweight and nicely balanced, each has a stock formed from two L-shaped sections of anodized aluminum that overlap to fasten the blade securely. As a further benefit of this design, if the square is ever dropped or its accuracy is otherwise compromised, the two L-shaped sections can be loosened, recalibrated against another known 45° reference surface, then retightened. A triangular cut-out in the stock aids grip, and all edges on the blade and stock are slightly chamfered, so they won't readily mar your work or get dinged through contact with hard surfaces.
Each has a thick blade to provide a good registration surface for use with a marking knife. Blades are made of stainless steel, hardened to resist scoring in use, and have a matte finish that can be marked with a pencil for direct-reference applications. Superbly engineered and finely finished tools.