Specification Brand : MXBAOHENG BulletPoint1 : This Knife-Shaped Straight Edge undergoes stability processing and demagnetization during processing. BulletPoint2 : This Knife-Shaped Straight Edge is made of magnesium aluminum alloy material which is not easy to deform, not easy to rust. BulletPoint3 : This Knife-Shaped Straight Edge is equipped with insulation sleeve for safe operation. BulletPoint4 : This Knife-Shaped Straight Edge is mainly used for straightness measurement and flatness measurement by the light gap method. BulletPoint5 : It can also be used together with the gauge block to check the plane precision. ItemName : MXBAOHENG Knife Straight Edge Straightness Flatness Measurement Lineal Measure Flatness Gage Magnesium Aluminum Alloy (600x70x15mm) ItemTypeKeyword : straight-edges Manufacturer : MXBAOHENG Material : Magnesium Aluminum Alloy PartNumber : JL-277 ProductDescription : MXBAOHENG Magnesium Aluminum Alloy Knife-Shaped Straight Edge 300-1000mm Flat Edge Straightness/Flatness Measurement for Cylinder Block Head/Elevator Installation/Flat Plate/Machine table/Guide