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AMZCNC Manual Knockout Punch Kit for Metal Sheets - 1/2~1-1/4 Conduit Holes
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About this item
- Heavy Duty Classic Hole Punch Kit, forged, machined and heat treated 5140 steel construction.
- Economic Knockout Punch Driver Set, complete conduit punch set include 4 dies, 4 hole punches, 2 bearing driving bolts
- Manual drive knockout punches, for use with ratchet, wrench, or electric driver. Conduit punch sizes: 1/2",3/4",1",1-1/4",Actual hole diameter:0.89" ,1.11" ,1.36" ,1.7"
- The user-friendly drive-bolt mechanism employs multiple rotations of a wrench to generate pressure.
- Sheet Metal Knockout Punch Kit, perfect for mild steel under 10 gauge (3.5mm), such as sheet steel, copper, aluminum, brass, fiberglass, some plastics, electrical pipe, quazite, conduit (NOT FOR Stainless Steel, Wood, Drywall)