Product Details: Manufacturer Part Number: 1429AV|Component Type|PunchProduct Shape|RoundCompatible Conduit Size|Overall Length|Overall Width|For Maximum Steel Thickness|Stud Diameter|Stud Length|Container Type|Number Of Pieces|Shank Size|Cutting Depth|Tip Size|Punch Hole Diameter|Punch Hole Length|Punch Hole Width|For Pipe Size|For Use With|Standard Round Knockout Punch UnitCompatible Conduit Size (Decimal Inch)|2-1/2Punch Hole Diameter (mm)|74Punch Hole Diameter (Decimal Inch)|Punch Hole Length (mm)|74Punch Hole Length (Decimal Inch)|Overall Width (mm)|Punching Force|Outside Diameter|For Panel Cut-out Diameter|PSC Code|UNSPSC Code|