Specification Brand : UTZIKO BulletPoint1 : Conduit Hole Size: 2-1/2" Conduit Fitting Size: 2-1/2" Actual Hole Size: 2.91" BulletPoint2 : Dies have laser engraved alignment marks for easy and precise positioning. BulletPoint3 : STANDARD THREAD - Fits Draw Stud Size: 3/4"-16UN BulletPoint4 : Punching Thickness Capacity: 1/8" (10 ga) Steel, 1/16" Stainless Steel BulletPoint5 : They are designed to punch holes in various materials, including steel, stainless steel, brass, copper, aluminum (soft alloys only, not for use with 6061, 7075, and other super alloys), fiberglass, plastic, and more. Color : Black ItemName : UTZIKO 2-1/2" Conduit Punch and Die for Hydraulic Knockout Driver - 2.91" Actual Hole Size… ItemPackageDimensions_Height : 16.891 centimeters ItemPackageDimensions_Length : 7.112 centimeters ItemPackageDimensions_Width : 15.7988 centimeters ItemTypeKeyword : hand-tool-knockout-punches Manufacturer : UTZIKO Material1 : Tool Steel Material2 : Stainless Steel Material3 : Alloy Steel ModelNumber : UT-2J-2-1/2" OperationMode : Hydraulic PartNumber : UT-2J-2-1/2" ProductDescription : The punch and die are made of hardened tool steel with a black oxide finish, providing durability and corrosion resistance. They are designed to punch holes in various materials, including steel, stainless steel, brass, copper, aluminum (soft alloys only, not for use with 6061, 7075, and other super alloys), fiberglass, plastic, and more. ProductSiteLaunchDate : 2023-04-10T00:18:05.071Z SheetCount : 10 Style : (Conduit Hole Size) 2-1/2" SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 44101602