An electrical knockout set is used to makes holes in a junction box or electrical panel. An electrical knockout set gives some options of punch sizes that you can use to make holes. Some knockout punches use hydraulic pumps, but they are for heavy-duty purposes.
Although you can often achieve the same outcome with a good cordless drill, people tend to prefer knockout sets since they make the task a whole lot easier and safer (with way less mess).
A good knockout punch set will come with a lot of punches in a wide variety of different shapes and sizes, along with a strong and easy-to-grip driver.
To help you find the best electrical knockout punch on the market – we’ve reviewed the Top 5 Electrical Knockout Sets of 2025.
Buy with the confidence that you’re spending your money on a high-quality knockout set. Let’s dive straight into the reviews.
Contents
Top 5 Best Electrical Knockout Set
| Preview | Product | Key Features | |
|---|---|---|---|
Best Overall  | TEMCo Hydraulic Knockout Punch TH0004 - Electrical Conduit Hole Cutter Set... |
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Premium Choice  | Greenlee 7238SB Slug-Buster Knockout Punch Kit with Hex Ratchet Wrench,... |
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Excellent Value  | Yescom 10 Ton Hydraulic Punch Driver Kit Manual Hole Knockout Puncher Tool... |
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 | Yescom 6 Ton Hydraulic Knockout Punch Driver Kit 6 Dies Hole Punch Knockout... |
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TEMCo Hydraulic Knockout Punch
Experience consistent precision with the TEMCo Electrical Knockout Set, designed for both professional and home use. This robust kit features a formidable 9 US True Ton punching capacity, ensuring powerful performance. It includes six die sets tailored to safeguard electrical linings and wirings, accommodating a range of sizes from ½ to 2 inches. Its versatility and strength make it a reliable choice for any project.
The kit allows some different surfaces to punch on. To top it all off, the company gives a five-year warranty on the products. The price is perfect and a little cheap for a knockout punch of this kind.
Pros:
- Two thick spacers come with the box that allows you to accommodate the thickness of the punch
- There are over six different die sizes
- Steel, stainless steel, brass, copper, aluminum, fiberglass, and plastic surfaces can be punched easily with this set
- You can enjoy the punching thickness of 1/8 inches in steel and 1/16 inches in stainless steel
Cons:
- Small hydraulic hose creates a hassle
- Replacement parts are not available
Verdict:
The only major flaw this product hold is that if a part is broken or missing, you will have to repurchase the whole set. Otherwise, this toolkit can help you domestically or even at work.
Greenlee Knockout Set
- 1/2" - 2" SLUG-BUSTER KNOCKOUT KIT: Punches precise holes in up to 10-gauge mild steel, aluminum, brass, copper, fiberglass, and plastics with an outside diameter of 7/8" for 1/2" to 2" conduit size knockouts
- HIGH-LEVERAGE RATCHET WRENCH: Built to meet the needs of busy electricians on the jobsite, the high-leverage 1" hex ratchet wrench features a convenient 5-degree ratcheting mechanism
- ERGONOMIC PUNCH PROFILE: Effortlessly splits slugs in half to make the slug removal process extremely easy and has a knurled edge for a secure grip
Greenlee stands out in the realm of electrical knockout sets, offering unmatched quality and hassle-free operation. This set includes a versatile 1-inch ratchet wrench, compatible with both 3/8 inch and ¾ inch studs. With a capacity to punch through ten-gauge materials, it comes equipped with a comprehensive range of punch sizes and the necessary draw studs and driver. While not the least expensive, its superior quality and adaptability justify the investment, promising long-term reliability and efficiency.
Pros:
- Contains a hexagonal wrench that is versatile for the available draw studs
- Ten gauge punching capacity on mild steel
- The toolkit includes ½ inches, ¾ inches, 1 inch, one ¼ inch, 1 ½ inches, and 2 inches punches that come with the driver and the draw studs
Cons:
- Cannot be used on any other material but steel
- Does not contain a hydraulic machine
Verdict:
This set is one of the richest sets that you will buy at a high price. However, it is missing two essential components. Nevertheless, if you think that you can compromise on the missing parts of this set, then this will not disappoint you at all.
Yescom Knockout Punch Hole Driver Kit
- [Complete Set]: This 10-ton Hydraulic Punch Driver Kit features a 10-ton pump, 2 draw studs, a piston shaft, 2 spacers and 6 sets of interchangeable dies and punches, designed to fit 1/2", 3/4", 1", 1 1/4", 1 1/2" and 2" conduit sizes, enabling hole drilling on stainless steel, iron, steel, aluminum, plastic, etc.
- [Hydraulic Design]: Features a highly efficient hydraulic pump producing 10T of pressure with high accuracy and speed, enabling quick and labor-saving work; Suitable for punching iron of up to 1/8" (11 gauge) thickness, or stainless steel of up to 1/16" (16 gauge) thickness, it is equipped with a flexible pressure hose for easy angle adjustment and effective operation even in limited spaces
- [Durable]: With a body made of sturdy steel and 40Cr steel dies for high tensile strength, it boasts resistance against rust, corrosion, deformation, and wear-and-tear, ideal for heavy-duty and frequent punching over prolonged periods
The Yescom Electrical Knockout Punch Kit not only catches the eye with its attractive dual-color design but also offers exceptional value. Its included hydraulic pump simplifies your tasks, while the six interchangeable dies and punches ensure versatility, allowing you to tailor the tool to your specific needs. This combination of functionality and affordability makes it an appealing choice for professionals and DIY enthusiasts alike.
The tools which have steel handles have a plastic grip on them to provide better handling. The rotatable switch gives the users the satisfaction of better security. One of the most attractive features of this product is the price that it is sold on. It is affordable.
Pros:
- Contains six dies and punches that are interchangeable
- Comes in two attractive colors
- Plastic grip at the end of the handles for better holding
- On and off switch is made rotatable to avoid risks
Cons:
- It weighs about 24 pounds which are a lot if you have to carry it to your workplace every day
- There are not enough surfaces that this machine can be used on
Klein Tools Knockout Punch Set
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Klein Tools’ Electrical Knockout Set, renowned for its uncompromising quality, delivers unparalleled precision. It uniquely separates slugs, simplifying removal and enhancing efficiency. Engineered to effortlessly cut through up to ten-gauge mild steel, as well as aluminum, fiberglass, and plastic, this set stands out for its robustness and versatility, ensuring it’s a valuable addition to any toolkit.
The toolbox holds dies and draws studs of ½ inch, ¾ inches, 1 inch, one ¼ inch, 1 ½ inches, and 2 inches sizes that pass through wiring. The product may seem to be a little over priced, yet it is worth the exceptional provided quality.
Pros:
- A wrench is included in the set
- The tools separate slug to ensure that the removal is easy
- There are over six different types of draw studs for the punch of your choice.
- It can cut through aluminum, plastic, and ever fiberglass
Cons:
- There is no hydraulic hose available for this
- The kit is about 9 pounds which make it cumbersome to travel with
Verdict:
A hydraulic punch is always considered to be a little better. Even though this product does not have that factor, it still is one of the finest knockout punch sets that you will find. The extra money seems worth it.
Yescom 6 Ton Hydraulic Knockout Punch Driver Kit
- [Complete Punch Tools]: Hydraulic punch tool kit features 1pc 6-ton pump, 2pcs draw studs, 1 set of spacers and 6 sets of interchangeable dies & punches for conduit fitting size of 1/2", 3/4", 1", 1 1/4", 1 1/2" and 2", can drill different sizes holes on stainless steel, aluminum, steel, plastic, etc; 1/8” (11 gauge) max punching thickness for steel and 1/16” (14 gauge) for stainless steel, good to be used for different drilling projects
- [Efficient Hydraulic Design]: Hydraulic mechanism of the pump produces a strong force of 6T (59KN) for providing great punching accuracy and fast punching speed which is 10 times much faster than common wrenches, ideal for improving working efficiency; rotary “on/off” knob on the pump for quick releasing pressure, adding more safety
- [360 Degree Rotation]: 360 Degrees rotatable punch head for meeting your punching needs, you can adjust it flexibly to use in narrow areas; plastic grip at the end of the long handle for labor saving and comfortable operation
Optimize your workspace with the Yescom 6 Ton Hydraulic Knockout Punch Driver Kit, engineered for ease and efficiency. It boasts a versatile selection of six interchangeable punches and dies, catering to a variety of tasks. Enhanced safety is ensured with a dedicated on/off switch, and the 360-degree rotatable cylinder guarantees precise cuts from every angle. This kit is designed for those who seek reliability and precision in their tools, without
You can give about 6 tons of maximum pressure with these tools on aluminum, stainless steel, plastic, and other different surfaces. The price of this product does not exceed your budget and suits it well.
Pros:
- On and off switch designed to increase safety
- The cylinder is fully rotatable to ensure clean cuts
- Six different dies and punches can be mixed up to be used
- The kit works on multiple surfaces
Cons:
- The plastic box is cheap and breaks easily
- The scope of application is only about 11 -14 gauge
Verdict:
This product will give you multiple benefits at an affordable price. The quality benefits make you want to look away from the cons. However, ensure that the cons do not come in your work way.
Buyers’ Guide for Electrical Knockout Sets
Looking at the product reviews, you may have found out the different types of the same product available in the market. This buyers’ guide will further help you determine the right electrical knockout set for you.
What does a knockout punch set include?
A typical knockout punch set will include at least three main elements; a die, a draw stud, and punch. A draw stud is a large threaded bolt that keeps the die and the punch together; you need to drill a hole to insert the draw stud. The die is a metal cylinder that helps add the punch. The punch is the part that does the cutting and determines the knockout sizes. The punch needs to be sharper, and give clean cuts to ensure that the product works well. Hydraulic punches are a new thing which does not require the user to make much effort.
How to use a knockout punch set?
The three primary elements are needs to ensure that the product is complete and works properly. The steps are simple. First and foremost you need to drill a hole through the material that you want. The diameters of the whole shall be determined through the draw stud that you want to use. Next, the user shall find the right fit of the die into the draw stud and then insert both of them into the made hole. The desired punch shall be inserted in the draw stud, and it shall be tightened with hands. Now pulling the bolt with the wrench will cut. Separate the materials to find the precise cut.
How to punch out hole in electrical box ?
To punch out holes in an electrical box, the first and foremost thing to do is ensure that the wire switches are turned off. No matter how professional you are, the wires can be highly dangerous if electricity is passing through. Next, find the area where you need to make a punch. The place should make it easy for you to connect the wire that you want to. Work on the surface to create a punch and remove the slug to find a clean cut. Close the box once again and connect your wires or pipes through the new hole that you have made. Finally, turn the electricity back on after fixing the box in its rightful position again.
Is a hydraulic punch better?
A hydraulic punch will give you support and pressure to cut the hole easily. Usually, the provided cuts will be cleaner, smoother, and will allow less manual labor than regular punches will. Only a few kits may work with a hydraulic system; others still use the manual procedure. Hydraulic punches are known to be safer too since they allow the user to stand at a short distance while doing the dangerous task of working to make a hole.
How does a timer switch work?
A timer switch is a simple system that is set to a particular time to operate an electric switch. The switch can be connected to the main electrical power supply, inverters, or any other system. The timer does the acquired task that it is designated to do in the time limit given to it. For example, the television is set to sleep after a certain time to ensure that no additional energy is wasted.
Should a punch work on various surfaces?
You can buy a purpose built punch set. They are certainly better since they are designed to operate on a single surface. The multi surface knockout punch sets have setting and designs. The pick is mostly up to the user and their needs. Both work fine and are a good option. The only seeming disadvantage to buying the single purpose one is that you cannot use it on other surfaces. Hence you are bounding yourself.
Conclusion
After taking a close look at the products and the guide, you may have understood which electric knockout set will work for you. Alternatively, at least you may have had a better understanding on which toolkit is better than the other. For us, the winner is hands down the Temco knockout punch set.
