Specification AgeRangeDescription : adult Brand : NURII BulletPoint1 : MATERIALS:Stainless steel material, hard and wear-resistant BulletPoint2 : Standard:Clear and accurate calibration, convenient and intuitive reading. BulletPoint3 : Maintenance:In order to ensure the accuracy of measurement, please clean and maintain the product in time. BulletPoint4 : apply:The scraper fineness meter is mainly used to measure the fineness of pigments and impurity particles in coatings, paint pastes, inks and other liquids and pastes BulletPoint5 : Use and read:Put some particles on the deeper groove, then use scraper to scrape them from deeper to low groove. Immediately (not over 5 seconds) observe the tick mark of grain visible in the channel, this numerical value is the fineness. Color : One Color ExternallyAssignedProductIdentifier : 7625969502889 ItemName : NURII Grindometer, Single Groove Stainless Steel Grind Gauge(PS 2412(0-50um)) ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : thickness-gauges Manufacturer : NURII Material : stainless steel ModelName : NURII ModelNumber : NURII NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : NURII ProductDescription : Single Groove Stainless Steel Grind Gauge Material: stainless steel The fineness plate is a flat steel block with grooves on the surface. The depth of the groove is zero from the maximum value at one end to the end. A scale unit indicating the depth of the groove is engraved on the steel block to read out the size of the particle value. The scale unit H is the Hegman scale: 0 Hegman = 100 um 4 Hegman = 50 um 8 Hegman=0 um