Free ShippingGreenlee 61089 'DD' Punch Assembly (.795 Diameter x .697 Flats)
$429.82$452.20Unit price /UnavailableAvailable for Backorder-
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Greenlee 711C BUSHING (BAG/100) (711C)
$31.99$35.65Unit price /UnavailableVery low stock (1 unit) 
Gardner Bender KOS-1500DS Slug-Out Mechanical Knockout Set for 1.5" (3.81 cm) Conduit
$107.41$122.60Unit price /UnavailableAvailable for Backorder-
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Greenlee 60068 Rectangular Punch Assembly 1.811 x 3.622
$1,986.57$2,090.00Unit price /UnavailableShips from Manufacturer -
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Gardner Bender KOM400 Slug-Out Mechanical Knockout Set for 4" (10.16 cm) Conduit
$907.34$1,147.18Unit price /UnavailableAvailable for Backorder -
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Gardner Bender KOM300 Slug-Out Mechanical Knockout Set for 3" (7.62 cm) Conduit
$300.63Unit price /UnavailableAvailable for Backorder -
Gardner Bender KOM200 Slug-Out Mechanical Knockout Set for 2" (5.08 cm) Conduit
$128.21$142.06Unit price /UnavailableAvailable for Backorder 
Free ShippingGardner Bender KOH540A Knockout Set
$2,769.89$3,467.77Unit price /UnavailableAvailable for Backorder-
Greenlee 11791 ADAPTER-DIE 3/4X3/8 (1732)
$172.98$179.70Unit price /UnavailableAvailable for Backorder -
Gardner Bender KO710 Knockout Seal 4", 10/Box
$76.94$96.32Unit price /UnavailableAvailable for Backorder -
Greenlee 11790 Adapter-Die 3/4-10x.750 (1732-M2)
$97.40$108.25Unit price /UnavailableVery low stock (2 units) -
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Greenlee 60249 DIE UNIT-OILTITE 1-7/32"
$238.24$250.65Unit price /UnavailableAvailable for Backorder -
Gardner Bender KO709 Knockout Seal 3-1/2", 10/Box
$59.43$75.68Unit price /UnavailableAvailable for Backorder -
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Greenlee 60174 Square Punch Assembly 3-5/8"
$2,200.81$2,403.15Unit price /UnavailableAvailable for Backorder -
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Greenlee 60178 PUNCH-SQ 4.125 (104.8)
$1,071.24$1,127.00Unit price /UnavailableAvailable for Backorder -
Gardner Bender KO708 Knockout Seal 3", 10/Box
$50.53$63.50Unit price /UnavailableAvailable for Backorder -
Gardner Bender KO707 Knockout Seal 2-1/2", 10/Box
$41.71$52.21Unit price /UnavailableAvailable for Backorder -
Gardner Bender KO706 Knockout Seal 2", 10/Box
$35.12$43.93Unit price /UnavailableAvailable for Backorder -
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Greenlee 60076 DIE UNIT-RECT 2.67X5.43(68.0X138
$1,457.98$1,533.90Unit price /UnavailableShips from Manufacturer -
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Greenlee 7704SB Quick Draw Flex® 8-Ton Hydraulic Knockout Driver
$1,116.02$1,300.00Unit price /UnavailableShips from Manufacturer -
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Greenlee 60073 DIE UNIT-RECT 2.25X3.50(57.2X88.
$1,332.38$1,443.75Unit price /Unavailable -
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Greenlee 60026 PUNCH-RECT .437X.875 (11.1X22.2)
$243.55Unit price /UnavailableAvailable for Backorder -
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Greenlee 740H-1-7/32 Self-Centering Knockout Punch Unit, 1-7/32" (740-H) SC
$352.97Unit price /UnavailableAvailable for Backorder -
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Greenlee 60021 DIE UNIT-SQ 1.811 (46.0)
$776.38$816.80Unit price /UnavailableAvailable for Backorder -
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Greenlee 60062 PUNCH UNIT-RECT 1.37X3.22(35.0X8
$2,144.41$2,256.05Unit price /UnavailableShips from Manufacturer -
Greenlee 1756AV PUNCH-RD 2.000 OD (50.8MM) (73
$97.54$109.75Unit price /UnavailableAvailable for Backorder -
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Greenlee 60047 PUNCH UNIT-RECT.990X1.14(25.1X29
$695.21$731.40Unit price /UnavailableAvailable for Backorder -
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Greenlee 730PBB-3-3/4 PUNCH UNIT-RD 3.750 (730PBB)
$910.49$957.90Unit price /UnavailableAvailable for Backorder -
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Greenlee RS232 PUNCH UNIT-CONNECTOR 25 PIN (RS-
$939.07Unit price /UnavailableAvailable for Backorder
About Knockouts
Heavy duty hole making supplies for pro electricians. We carry both hydraulic and high capacity battery powered knockout options. Shop from slug buster knockouts, slug splitter knockouts for stainless, standard knockouts, stud punches, battery knockout tools, c-frame punches, specialty punches, and speed punch knockouts from Greenlee and Milwaukee