Granite Straightedge

Granite Straightedges are used to measure the straightness and flatness of workpieces and for equipment installation.Granite rulers,marble rulers,and rock rulers have a black luster,precise structure,uniform texture,good stability,high strength,and high hardness.Granite rulers,marble rulers,and rock rulers are made from underground rock layers and have undergone billions of years of natural aging,resulting in extremely stable shapes without worrying about deformation due to conventional temperature differences.The Granite Straightedge has undergone rigorous physical testing and selection of granite materials,with fine crystallization and a hard texture.

A Granite Straightedge,even if a rock tool is hit by heavy objects during use,can only drop a few pieces of gravel at most.Granite Straightedges are superior to precision measuring reference parts made of cast iron and steel,and can achieve high and stable accuracy.The Granite Straightedge produced by our company can maintain its original accuracy even after being stored for one year.

The use of Granite Straightedges is mainly for measuring the straightness and flatness of workpieces and equipment installation.It can also be used to check the flatness and straightness of machine tool workbenches,guide rails,and precision work.Suitable for industrial production and laboratory measurement work.

Material of Granite Straightedge:The main mineral components of granite are pyroxene,plagioclase,a small amount of olivine,biotite,and trace magnetite.It has a black color,precise structure,uniform texture,good stability,high strength,high hardness,and can maintain high precision under heavy loads after billions of years of aging.

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