Every Swanson Speed® Square is die-cast from heavy-gauge aluminum alloy with deep black-filled markings. Every gradation, rafter number, and degree mark is cast into the aluminum itself, not applied on top of it. Here's why that matters against a laser-etched square:

• Markings stay legible for years, not seasons.

  Laser-etched scales are surface-only. Sun, sweat, wet lumber, concrete dust, and the shoe of a circular saw riding the blade all wear the etching down until the numbers grey out. Deep black-filled markings read the same on year one and year ten. Try reading a laser-etched scale on a hot Arizona roof after two summers, the marks are gone.

• Die-cast holds tolerance under jobsite abuse.

  Drop a die-cast body off a scaffold, you get a dent, and the 90 degree corner still reads true. Drop a thin stamped or extruded square, it bends out of square, and once a square isn't square, every cut off it is wrong.

• 15X stronger than standard aluminum construction.

  The Big 12® is CNC machined from a heavy-gauge aluminum alloy. Budget stamped or laser-etched squares are usually thin-gauge aluminum or high-impact composite, both of which flex when butted against a saw shoe as a guide.

• Reads true in direct sunlight.

  Black-filled marks on a matte die-cast body carry high contrast in the brightest sun. Laser-etched marks reflect light back at the reader and grey out exactly when you need them most, mid-cut on a hot roof.

• CNC precision for the life of the tool.

  Every Speed® Square is CNC machined to a perfect 45 and 90 degree corner. Laser-etched squares typically ship with stamped or extruded bodies where the corner tolerance was set by a die, not machined.

• Buy the tool once.

  A die-cast Speed® Square finishes the job it was bought for, and the next one, and the one after that. Framers hand these down from apprentice through retirement. Cheap laser-etched squares get replaced every couple of seasons; the difference compounds.