Three sided/four sided inspection ruler: mostly made of stainless steel/cast steel/magnesium aluminum materials, with a few made of cast iron materials,Three sided ruler/four sided rulerThe material is T10A, which has been quenched and tempered to a hardness of HRC58 ° -62 °. It is then precision ground and manually ground for repair.Three sided ruler/four sided rulerAchieve precise parallelism, perpendicularity, and blade straightness. Mainly used for measuring the straightness and flatness of workpieces and inspecting guide rails.

Related cast iron measuring tools:Three sided ruler/four sided rulerSingle walled T-shaped groove flat plate welding flat plate floor boring machine worktable marking flat plate inspection flat plate grinding scraping flat plate bending plate right angle ruler bending plate magnetic V-shaped frame cast iron square ruler magnesium aluminum alloy lightweight flat ruler angle flat ruler (dovetail ruler) three/four edge flat ruler I-shaped (parallel) flat ruler bridge type flat ruler.

Other measuring tool products:
Cast iron flat plate, foundation flat plate, marking flat plate, riveting and welding flat plate, welding flat plate, pyrotechnic flat plate, fitter flat plate, grinding flat plate, machine tool worktable (such as floor boring machine worktable), three coordinate flat plate, mold pad plate, assembly flat plate (also known as assembly flat plate).
Or: cast iron platform, foundation platform, marking platform, inspection platform, riveting and welding platform, welding platform, pyrotechnic platform, fitter platform, grinding platform, machine tool worktable (such as floor boring machine worktable), three coordinate platform, mold worktable, assembly platform (also known as assembly platform) and other measuring tool products.