Specification Brand : Starrett BulletPoint1 : Precise dial graduations of 0.001", with one revolution equivalent to 0.100" BulletPoint10 : Hardened stainless steel bar, measuring surfaces, rack, gears, and depth rod BulletPoint2 : Thumb-operated fine adjustment roll for one-handed use BulletPoint3 : Lock screw holds the sliding jaw in position, to ensure a consistent measurement BulletPoint4 : Rack teeth point down to keep foreign matter from clogging the gear BulletPoint5 : Knife-edge contacts for inside and outside measurements BulletPoint6 : One hand use with the thumb-operated fine adjustment roll BulletPoint7 : Lock screw for holding the sliding jaw in position BulletPoint8 : Sharp black bar graduations on a no-glare satin finish BulletPoint9 : Knife-edge contacts for inside and outside measurements Color : White CustomerPackageType : Frustration-Free Packaging ExternallyAssignedProductIdentifier1 : 049659566932 ExternallyAssignedProductIdentifier2 : 0049659566932 ExternallyAssignedProductIdentifier3 : 618794226690 IncludedComponents : 2PCS Included Components ItemName : Starrett 120Z-12 Dial Caliper, Stainless Steel, White Face, 0-12" Range, +/-0.001" Accuracy, 0.001" Resolution ItemPackageDimensions_Height : 5.08 centimeters ItemPackageDimensions_Length : 45.974 centimeters ItemPackageDimensions_Width : 17.269993 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : dial-calipers Manufacturer : Starrett Material : Stainless Steel MeasurementAccuracy : +/-0.001" ModelNumber : 120Z-12 NumberOfItems : 1 PartNumber : 120Z-12 ProductDescription : ECG 7 Step Ruler, 2PCS ECG 7 Step Ruler for ECG/EKG Interpretation, Portable ECG Assessment Tool EKG Card,ECG Ruler, Transparent EKG Calipers Measuring Tool Follow a 7 Step Plan This ECG 7 Step Ruler is an essential tool for accurately interpreting electrocardiogram (ECG/EKG) readings. Crafted from durable, transparent plastic, it features a 7-step plan for comprehensive ECG analysis. ProductSiteLaunchDate : 2004-11-09T05:00:01-00:00 Range : 0-12" Resolution : 0.001" Size : 0-12" Range, +/-0.001" Accuracy, 0.001" Resolution Style : Dial, Face Color White SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 44101602