Specification Brand : AMZCNC BulletPoint1 : 7/16", 20UN SCREW UNIT-DRIVE for 1/2" hole die BulletPoint2 : Knockout punch can be used with ratchet, wrench, or electric driver. BulletPoint3 : The Package Height of the Product is :3.8 inches BulletPoint4 : Country of Origin: CHINA BulletPoint5 : Notice - First, open an 11.5mm guide hole, screw in the draw stud in the hole opener, put down the lower die, iron plate, and upper die in sequence, and finally press and open the hole. Color : Metallic ExternallyAssignedProductIdentifier1 : 0840349941189 ExternallyAssignedProductIdentifier2 : 840349941189 ExternallyAssignedProductIdentifier3 : 00783310123057 GpsrSafetyAttestation : 1 Hazmat : auto-grounding HoleCount : 4 IncludedComponents : 12305 ItemName : AMZCNC 7/16", 20UN Screw Unit-Drive for 1/2" Hole die ItemPackageDimensions_Height : 14.7066 centimeters ItemPackageDimensions_Length : 6.4008 centimeters ItemPackageDimensions_Width : 10.2108 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : hand-tool-knockout-punches Manufacturer : AMZCNC Material : Alloy Steel Material1 : Metal Material2 : Stainless Steel ModelNumber : JXKK NumberOfItems : 1 OperationMode : Manual PartNumber : JXKK ProductDescription : AMZCNC 7/16", 20UN SCREW UNIT-DRIVE for 1/2" hole die ProductSiteLaunchDate : 2022-07-01T01:10:54.512Z SheetCount : 20 Size : 3/4 In actual hole size Style : 7/16", 20UN Draw stud with bearing SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 27111700