Specification Brand : Jwn BulletPoint1 : Knurling wheel figure: approx. 0.5mm, 1.0mm, 2.0mm BulletPoint2 : Knurling wheel diameter: approx. 20mm BulletPoint3 : Two rollers twill direction: one is positive and the other one is negative. BulletPoint4 : Comes with fine, medium,and coarse diamond knurls. BulletPoint5 : The mechanical process metal knob or other work at the appearance of rolling pattern for anti-slip. Color : Black ExteriorFinish : Plastic ExternallyAssignedProductIdentifier : 6467420324224 FinishType : Powder Coated IncludedComponents : Screw ItemName : 1pc New Steel Knurling Tool with 6pcs Diagonal Linear Knurl Wheel Set 0.5mm 1mm 2mm Pitch ItemPackageDimensions_Height : 19.5 centimeters ItemPackageDimensions_Length : 7 centimeters ItemPackageDimensions_Width : 12.5 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : hardware-hand-wheels Manufacturer : Jwn Material : Metal Material1 : Plastic Material2 : Metal MeasurementSystem : metric MetalType : Metal OperationMode : Mechanical PartNumber : Handtool-495 ProductDescription : Specification: Brand new Material: Steel Color: Black (Knurling) + Brown (Wheel) Knurling wheel figure: approx. 0.5mm, 1.0mm, 2.0mm Knurling wheel diameter: approx. 20mm