This tool is made of POM and it's used to align the HGR15 or MGN15 linear rail on 20 profile extrusions.
By using this tool, you can make sure the linear rail is straight. This is important when using two rails with one plate, such as an X-Axis or Z-Axis. If the rails aren't aligned correctly, the movement is affected.
But by using the alignment tool when installing linear rail onto 20 profile V-Slot, you can make sure the linear rail is correctly mounted.
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