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Vintage Greenlee Tool No. 730 3/4", 1", 1-1/4" Round Radio Chassis Punch (3A)

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Greenlee Knockout Punch & Die Set SQ 1-3036 5004638 5013038

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Manual Knockout Hole Punch Driver Kit 1/2",3/4",1",1-1/4" Electrical Conduit Hol

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Greenlee No. 730 - 1-5/32 Round Metal Radio Chassis Punch

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Malco CGPR Ceiling Grid Punch -Reduced Price-Lowest on Ebay

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iTOOLco GP123 Gear Punch Die and Punch Set,  2-1/2" to 4"

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SET OF RIDGID 1"/34.6mm , 1-1/2"/49.7mm , 2"/61.8mm KNOCKOUT HOLE PUNCHERS

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Hydraulic Knockout Punch Electrical Conduit Hole Cutter Set Ko Tool Kit 1/2 To 2