TRK Fab Square 10″ x 10″ x 4″ – 90° (DIY Kit)

TRK Fab Square 10″ x 10″ x 4″ – 90° (DIY Kit) Built from 3/8″ A36 HRP&O steel and proudly made in the USA, this precision alignment tool ships as a complete DIY kit—ready for you to assemble and weld. All parts are laser cut for accurate fit-up and true 90° alignment on frames, brackets, and fabrication projects. No coating. No assembly. You build it. You finish it. Get the same solid foundation—built your way.