Specification Brand : SENKICHI BulletPoint1 : Uses: For processing holes in wood, etc BulletPoint2 : Feature 1: Honbforged hand-made finish with fine craftsmanship BulletPoint3 : Feature 2: This is the most basic chisel that can be used for a wide range of applications including assembly parts BulletPoint4 : Blade width: 0.1 inches (3 mm) BulletPoint5 : Quantity: 1 Color : red ExternallyAssignedProductIdentifier : 4977292120401 IncludedComponents : No ItemName : SENKICHI Senkichi Silver Award, Chisel, Chisel Only, Genuine Forged 0.1 inch (3 mm) ItemPackageDimensions_Height : 36.2 centimeters ItemPackageDimensions_Length : 2.9 centimeters ItemPackageDimensions_Width : 14 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : wood-chisels Manufacturer : 千吉銀賞 Material : Wood,Wooden MeasurementAccuracy : 0.1mm ModelName : Senkichi Silver Award for Admission Only ModelNumber : 3MM NumberOfItems : 1 PackageLevel : unit PartNumber : 3MM ProductDescription : Item Type: Vernier Caliper Material: Stainless steel Measuring Range: Approx. 0-200mm / 0-7.9in Resolution Value: 0.02mm How to Use: Take the reading of the external measuring surface as an example. First find the 0 scale line of the secondary ruler, read the main ruler scale on the left, find the place where the main ruler and the secondary ruler scale are completely aligned, read the reading of the secondary ruler, and finally follow the precise reading formula Main ruler reading + secondary ruler reading x secondary ruler accuracy = accurate measurement value just read the value.