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Knockout Punches - 421 - Super Savings! Save up to 36%


Super Savings! Up to 36% off on Knockout Punches at In The National Interest. Top brands include BEAMNOVA, Greenlee, & Milwaukee. Hurry! Limited time offers. Offers valid only while supplies last.



BEAMNOVA 15 Ton 1/2'' to 4'' Hydraulic Knockout Punch Driver Hole Complete Set 10 Dies 11 14 Gauge Hand Pump Tool Kit
BEAMNOVA 15 Ton 1/2" to 4" Hydraulic Knockout Punch Driver Hole Complete Set 10 Dies 11 14 Gauge Hand Pump Tool Kit
By BEAMNOVA
In Stock
$219.98

mpn: 70021881-1,

4.9 out of 5 stars with 67 reviews
Brand New Complete 15-Ton Hydraulic Punch Driver Kit. It's great for installing and repairing wire pipeline, signal lamp and instrument in metallurgy, petrol, electronics, electrical appliance,chemical industry, ship & machinery and many more.  Spe...


Greenlee 540-15 Glo Stix, 15-Feet
Greenlee 540-15 Glo Stix, 15-Feet
By Greenlee
In Stock
$51.73
$48.83
You Save: 6%

mpn: 540-15, ean: 0795092917731,

4.7 out of 5 stars with 239 reviews
Greenlee 540-15 Specifications: Overall Length: 15 feet (4.6 m) Number of Sections: 3 Section Length: 5 foot (1.5 m) Diameter: 3/16 inch Material Type: Glo Stix Max. Pulling Strength: 200 pounds. Greenlee 540-15 Includes: (3) 5 foot Glo Stix Sections...


Milwaukee 49-16-2622 3/4'' Ball Bearing Draw Stud
Milwaukee 49-16-2622 3/4" Ball Bearing Draw Stud
By Milwaukee
In Stock
$38.00
$33.00
You Save: 13%

mpn: 49-16-2622, ean: 0045242311767,

4.0 out of 5 stars with 62 reviews
3/4" Ball Bearing Draw Stud. The Product is Easy to Use and Easy to Handle. The Product is Highly Durable. Made In China.3/4" Ball Bearing Draw Stud. The product is easy to use and easy to handle. The product is highly durable. ...


Greenlee 721-2 Slug-Buster Knockout Replacement Punch, 2-3/8-Inch
Greenlee 721-2 Slug-Buster Knockout Replacement Punch, 2-3/8-Inch
By Greenlee
In Stock
$65.86
$57.90
You Save: 12%

mpn: 721-2, ean: 0783310317616,

4.4 out of 5 stars with 170 reviews
332-721-2 Features: -Product Type:Punches. Dimensions: -Overall Product Weight:1.1The contractor's choice -worldwide. Unique punch profile also splits slugs for easier slug removal. Use with battery-powered, hydraulic, ratchet or manual drivers. Can...


Greenlee 36508 Slug-Buster Knockout Punch Unit, 1-7/32-Inch
Greenlee 36508 Slug-Buster Knockout Punch Unit, 1-7/32-Inch
By Greenlee
In Stock
$76.06
$63.59
You Save: 16%

mpn: 36508, ean: 0783310365082,

4.0 out of 5 stars with 116 reviews
Greenlee 36508 Specifications:Capacity: Mild steel up through 14 gauge (2.0 mm).Application: Punch mild steel, aluminum, fiberglass and plastic.Conduit Sizes - Hole size is outside diameter of US conduit sizes. Operation: Battery, hydraulic, ratchet ...


Greenlee 36284 Slug-Buster Knockout Replacement Punch, 1-7/32-Inch
Greenlee 36284 Slug-Buster Knockout Replacement Punch, 1-7/32-Inch
By Greenlee
In Stock
$43.08
$27.71
You Save: 36%

mpn: 36284, ean: 0783310362845,

4.3 out of 5 stars with 200 reviews
332-36284 Features: -Product Type:Punches. Dimensions: -Overall Product Weight:0.21The contractor's choice -worldwide. Unique punch profile also splits slugs for easier slug removal. Use with battery-powered, hydraulic, ratchet or manual drivers. Ca...


Greenlee 730-1/2 Standard Round Knockout Punch Unit, 1/2-Inch
Greenlee 730-1/2 Standard Round Knockout Punch Unit, 1/2-Inch
By Greenlee
In Stock
$55.87

mpn: 730-1/2, ean: 0783310024088,

4.6 out of 5 stars with 7 reviews
"Greenlee® Knockout Punch, Round Standard, 1/2 in Cutting Dia, Applicable Materials: Aluminum, Fiberglass 16 ga Mild Steel, Plastic"Round standard metal punch units are complete units consist of punch, die and draw stud. Use with battery-powered, hy...


Greenlee 730BB-2-1/8 Standard Round Knockout Punch Unit, 2-1/8-Inch
Greenlee 730BB-2-1/8 Standard Round Knockout Punch Unit, 2-1/8-Inch
By Greenlee
In Stock
$142.42
$131.59
You Save: 8%

mpn: 730BB-2-1/8, ean: 0783310206781,

4.3 out of 5 stars with 57 reviews
332-730BB-2-1/8 Features: -Round Standard Metal Punch Units are complete units consisting of punch, die and draw stud. -Use with manual, ratchet, hydraulic or battery-powered drivers. -Properly assembled through pilot holes, they will make clean, fas...


Greenlee 61028 Rectangle Punch Unit, 0.670-Inch by 0.749-Inch
Greenlee 61028 Rectangle Punch Unit, 0.670-Inch by 0.749-Inch
By Greenlee
In Stock
$436.57

mpn: 61028, ean: 0783310610281,

4.5 out of 5 stars with 49 reviews
PUNCH ASSY,RECT (.670 X.749) 61028 by GreenleePunch unit includes punch, die, draw stud and nuts. Can be use with hand or hydraulic drivers. Punch up to 14 gauge mild steel. Align accurately and produce burr-free holes. ...


Greenlee 36171 Slug-Buster Knockout Punch Unit, 2-1/8-Inch
Greenlee 36171 Slug-Buster Knockout Punch Unit, 2-1/8-Inch
By Greenlee
In Stock
$133.05
$126.70
You Save: 5%

mpn: 36171, ean: 0783310361718,

4.0 out of 5 stars with 159 reviews
Features: Use with battery-powered, hydraulic, ratchet or manual drivers Properly assembled through pilot holes, they will make clean, fast and accurate holes Slug falls free in die Specifications: Capacity: mild steel up to 14 gauge Size: 2-1/8" Inc...


Greenlee 12347 Slug-Buster Knockout Punch Unit, 1-5/8-Inch
Greenlee 12347 Slug-Buster Knockout Punch Unit, 1-5/8-Inch
By Greenlee
In Stock
$92.75
$87.60
You Save: 6%

mpn: 12347, ean: 0783310123477,

4.8 out of 5 stars with 37 reviews
Features: Unique punch profile splits slugs allowing easy slug removal. Use with battery-powered, hydraulic, ratchet or manual drivers. Uses standard Greenlee dies and draw studs. Specifications: Capacity: Mild steel up through 10 gauge Size: 1-5/8" ...


Greenlee 442AV Standard Round Knockout Replacement Die, 2-3/8-Inch
Greenlee 442AV Standard Round Knockout Replacement Die, 2-3/8-Inch
By Greenlee
In Stock
$37.99

mpn: 442AV, ean: 0783310040637,

4.0 out of 5 stars with 216 reviews
2 Inch Conduit, Round DieRound standard metal punch units are complete units consist of punch, die and draw stud. Use with battery-powered, hydraulic, ratchet or manual drivers. Properly assembled through pilot holes, they will make clean, fast and a...


Greenlee 12313 Slug-Buster Knockout Punch Unit, 1-1/2-Inch
Greenlee 12313 Slug-Buster Knockout Punch Unit, 1-1/2-Inch
By Greenlee
In Stock
$92.75
$82.89
You Save: 11%

mpn: 12313, ean: 0783310123132,

4.2 out of 5 stars with 46 reviews
Features: The contractor's choice - worldwide. Unique punch profile splits slugs allowing easy slug removal. Use with battery-powered, hydraulic, ratchet or manual drivers. Uses standard Greenlee dies and draw studs. Specifications: Capacity: Mild s...


Greenlee 77U-3/4 Slug-Buster Self Centering Knockout Punch Unit for 3/4-Inch Conduit
Greenlee 77U-3/4 Slug-Buster Self Centering Knockout Punch Unit for 3/4-Inch Conduit
By Greenlee
In Stock
$71.89

mpn: 77U-3/4, ean: 0783310108023,

4.2 out of 5 stars with 300 reviews
INCLUDES: (1) 1.12" Punch Unit FEATURES: Self-centering Splits slugs for easier slug removal Useful on mild steel, aluminum, fiberglass, and plastic SPECIFICATIONS: Conduit: 3/4"Self-centering punch aligns itself on pilot hole. No need to draw crossh...


Greenlee 7211BB-2 Slug-Buster Knockout Punch Unit, 2-3/8-Inch
Greenlee 7211BB-2 Slug-Buster Knockout Punch Unit, 2-3/8-Inch
By Greenlee
In Stock
$127.17
$84.69
You Save: 33%

mpn: 7211BB-2, ean: 0783310319672,

4.2 out of 5 stars with 49 reviews
332-7211BB-2 Features: -Unique punch profile splits slugs allowing easy slug removal. -Use with manual, ratchet, hydraulic or battery-powered drivers. -Uses standard Greenlee dies and draw studs. -Price is for 1 Each. Product Type: -Punches. Dimensio...


Milwaukee 49-16-2694 M18 Exact 1/2'' to 2'' Hand Ratchet Knockout Set
Milwaukee 49-16-2694 M18 Exact 1/2" to 2" Hand Ratchet Knockout Set
By Milwaukee
In Stock
$359.55
$329.00
You Save: 8%

mpn: 49-16-2694, ean: 0045242311811,

4.3 out of 5 stars with 266 reviews
M18 Milwaukee Exact 1/2" to 2" Hand Ratchet Knockout Set . The Product is Easy to Use and Easy to Handle. The Product is Highly Durable. Made In China.M18 Milwaukee Exact 1/2" to 2" Hand Ratchet Knockout Set. The product is easy to use and easy to ha...


Greenlee 39265 Flexible Mandrel, 2-Inch
Greenlee 39265 Flexible Mandrel, 2-Inch
By Greenlee
In Stock
$160.76
$150.83
You Save: 6%

mpn: 39265, ean: 0783310392651,

4.2 out of 5 stars with 61 reviews
Greenlee 39265 Specifications:Duct Size: 2" (50.8 mm)Maximum Disk Size: 1.88" (47.7 mm)Maximum Rated Capacity: 2330 lbs. (10.3 kN)Weight: 1 lbs. (.45 kg)Greenlee 39265 Features:Useful for cleaning out mud, dirt, and light obstacles from ducts before ...


Greenlee 7211BB-1-1/4 Slug-Buster Knockout Punch Unit, 1.701-Inch
Greenlee 7211BB-1-1/4 Slug-Buster Knockout Punch Unit, 1.701-Inch
By Greenlee
In Stock
$80.34
$55.06
You Save: 31%

mpn: 7211BB-1-1/4, ean: 0783310319658,

4.2 out of 5 stars with 153 reviews
332-7211BB-1-1/4 Features: -Unique punch profile splits slugs allowing easy slug removal. -Use with manual, ratchet, hydraulic or battery-powered drivers. -Uses standard Greenlee dies and draw studs. -Price is for 1 Each. Product Type: -Punches. Dime...


Greenlee 735BB Knockout Punch Kit, 1/2-Inch to 1-1/4-Inch Conduit Size
Greenlee 735BB Knockout Punch Kit, 1/2-Inch to 1-1/4-Inch Conduit Size
By Greenlee
In Stock
$230.33
$187.94
You Save: 18%

mpn: 735BB, ean: 0783310199731,

4.2 out of 5 stars with 230 reviews
332-735BB Features: -Assortment of commonly used round standard knockout punches, packaged to meet the contractor's needs. -High-impact, rugged plastic carrying case. -Applicable Materials: Mild Steel. -Price is for 1 Set. Product Type: -Punches. Di...


Greenlee 7304 Standard Punches and Dies For 2-1/2 through 4-Inch Conduit
Greenlee 7304 Standard Punches and Dies For 2-1/2 through 4-Inch Conduit
By Greenlee
In Stock
$824.64
$824.14

mpn: 7304, ean: 0783310028154,

4.6 out of 5 stars with 125 reviews
7304 Model Code: AC (part# 7304) Standard Punches and Dies (no draw studs) This item features: -Assortment of commonly used round standard knockout punches, packaged to meet the contractor's needs. -High-impact, rugged plastic carrying case. -Appli...



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