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Greenlee 3/4'' knockout punch and die set for 3/4 conduct

Greenlee Knockout Punches and Cutters, Radio Chassis Punches : 1953 : Greenlee Tool Co. : Free Download, Borrow, and Streaming : Internet Archive

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Country of Origin:China Package weight:0.8 lb Model Number:61007

Greenlee 61007 Knockout Punch Unit, 3/4 in