Greenlee 742BB Knockout Punch Unit
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Greenlee 742BB Knockout Punch Unit
Greenlee round standard metal punch units can punch quick clean holes through metal up to 10 gauge. Properly assembled through pilot holes, they will make clean, fast and accurate holes. Slug falls free in die.
Greenlee 742BB Knockout Punch Unit
物品 #: 13773949

Greenlee 742BB Knockout Punch Unit

87% of respondents would recommend this to a friend

物品 #: 13773949

HKD 6619

Price Details

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*All items will import from 美國

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現在訂購，約可在下列時間收貨： 星期四, 九月 10
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Greenlee round standard metal punch units can punch quick clean holes through metal up to 10 gauge. Properly assembled through pilot holes, they will make clean, fast and accurate holes. Slug falls free in die.
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What Stands Out

Powerful Performance
The Greenlee 742BB delivers exceptional force for clean and efficient knockout operations, addressing the needs of professional electricians and contractors who require reliable and high-performance tools on the job site.
User-Friendly Design
Designed with ease of use in mind, this knockout punch unit allows for quick setup and operation, minimizing downtime and enhancing productivity for users performing extensive electrical work.
Durable Construction
Crafted from robust materials, the Greenlee 742BB ensures longevity and resilience, providing exceptional value by withstanding the rigors of job sites, thus reducing replacement costs over time.

產品詳情

Shop the Greenlee 742BB Knockout Punch Unit at Ubuy 香港. Easily punch clean, fast, and accurate holes in metal up to 10 gauge. Use with battery-powered, hydraulic, ratchet, or manual drivers.
  • Complete knockout punch unit with punch, die, and draw stud
  • Compatible with battery-powered, hydraulic, ratchet, or manual drivers
  • Creates clean, fast, and accurate holes when properly assembled through pilot holes
  • Slug falls free in die for easy removal
  • Suitable for use on mild steel up to 10 gauge
  • 4-1/2 inch hole size, 4 inch diameter conduit/pipe size, round punch type
Brand NameGreenlee
UPC783310199786
Global Trade Identification Number00783310199786
ManufacturerGreenlee
Model742BB
Part Number742BB
Included Components742BB
Unit Count1.0 Count
Item Type NameGreenlee 742BB KNOCKOUT PUNCH UNIT
Operation ModeManual
Sheet Count10
Material TypeAlloy Steel, Metal
ColorBlack
Item Weight5.12 Pounds (2.32 kg)
MaterialAlloy Steel, Metal
BrandGreenlee

Who Should Buy?

Suitable For
  • Electrical Contractors

    Ideal for professionals working with different sizes of knockouts in electrical panels and junction boxes efficiently.

  • HVAC Technicians

    Perfect for HVAC systems installation, allowing quick and clean cutting of conduit for ventilation ducts.

  • Maintenance Workers

    Useful for maintenance tasks requiring electrical and mechanical punchdowns in diverse facility management scenarios.

Not Suitable For
  • Casual DIYers

    Not suitable for occasional users due to the investment and specialized knowledge needed for effective operation.

產品敘述

Greenlee 742BB Knockout Punch Unit

About This Item

Introducing the Greenlee 742BB Knockout Punch Unit, the ultimate tool for all your hole-punching needs. Whether you are working with electrical boxes, conduits, or any other metal surface, this punch unit is designed to make clean, fast, and accurate holes. The Greenlee 742BB Knockout Punch Unit is a complete package, consisting of a punch, die, and draw stud. It has a 10-gauge mild steel capacity and can create holes up to 4-1/2 inches in size.

With a 4-inch diameter conduit/pipe size, it is suitable for a wide range of applications. This round punch unit is built to last, thanks to its ball bearing nut contents and the renowned Greenlee brand. It can be used with battery-powered, hydraulic, ratchet, or manual drivers, giving you flexibility and convenience on the job. Using this punch unit is a breeze. Simply assemble it through pilot holes, and it will effortlessly create quick and clean holes.

The slug falls free in the die, and with a quick tip, it drops right out, saving you time and effort. With the Greenlee 742BB Knockout Punch Unit, you can trust that every hole you make will be precise and professional. It is perfect for electricians, contractors, and DIY enthusiasts who require a high-quality tool that delivers consistent results. Invest in the Greenlee 742BB Knockout Punch Unit today and experience the ease and efficiency of hole punching like never before. Don't settle for anything less when it comes to your projects.

Choose reliability, choose Greenlee.

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客戶問題與解答

  • 題: What is the Greenlee 742BB Knockout Punch Unit used for?

    回答: The Greenlee 742BB Knockout Punch Unit is designed for creating clean holes in sheets of metal and other materials. This tool is particularly effective for electrical professionals looking to install conduits or panels. Its hydraulic system ensures that the punched hole is precise and requires less manual effort compared to traditional punching methods, making it a vital tool in electrical and HVAC applications.
  • 題: What size punches are compatible with the Greenlee 742BB Knockout Punch Unit?

    回答: The Greenlee 742BB Knockout Punch Unit is versatile and compatible with a range of punch sizes. It typically accommodates punches ranging from ½ inch up to 4 inches, depending on the specific application and material being worked with. This flexibility allows users to tailor their punching needs to various electrical boxes, conduit sizes, and other project specifications.
  • 題: How does the hydraulic mechanism of the Greenlee 742BB enhance its performance?

    回答: The hydraulic mechanism integrated into the Greenlee 742BB provides a significant advantage by delivering higher force with minimal effort. This system ensures that users can achieve smooth and precise cuts, even in tougher materials like stainless steel. The enhanced performance reduces fatigue during prolonged use, making it ideal for professional electricians who carry out extensive panel installations.
  • 題: Is the Greenlee 742BB suitable for both indoor and outdoor use?

    回答: Yes, the Greenlee 742BB Knockout Punch Unit is designed for versatility, making it suitable for both indoor and outdoor applications. Professionals often use it in various environments, from construction sites to electrical service calls. Its durable construction can withstand outdoor conditions, provided it’s maintained properly, thus ensuring longevity in diverse settings.
  • 題: Can the Greenlee 742BB Knockout Punch Unit be used on different materials?

    回答: The Greenlee 742BB is engineered to handle various materials, including mild steel, aluminum, and copper. This versatility makes it an excellent choice for electricians and contractors who frequently work with different metals. Understanding the material types you’ll be working with can help you choose the appropriate punch size and configuration for optimal results.
  • 題: What features make the Greenlee 742BB user-friendly?

    回答: User-friendliness in the Greenlee 742BB design includes its lightweight construction, ergonomic handle, and simple hydraulic operation. These features allow users to achieve precise results with less strain. Additionally, the tool's streamlined setup enables quick punches without the need for complex procedures, making it efficient for both professionals and DIY enthusiasts.
  • 題: What safety precautions should be taken when using the Greenlee 742BB?

    回答: When using the Greenlee 742BB Knockout Punch Unit, it's essential to wear appropriate personal protective equipment, such as safety glasses and gloves. Ensure that the workpiece is securely clamped to prevent movement while punching. Additionally, keep hands and other body parts clear of the punching area during operation to prevent injuries. Following these precautions helps maintain a safe working environment.
  • 題: How can I maintain my Greenlee 742BB Knockout Punch Unit?

    回答: Regular maintenance of the Greenlee 742BB includes cleaning the hydraulic components to remove metal shavings and debris after use. Inspecting the punches for wear and replacing them as necessary also ensures consistent performance. Proper storage protects the unit from damage, and maintaining clean hydraulic oil aids in efficient operation. This upkeep optimizes the tool's functionality for future projects.
  • 題: Where can I find replacement parts for the Greenlee 742BB?

    回答: Replacement parts for the Greenlee 742BB can typically be found through authorized Greenlee distributors and various online platforms. It’s advisable to consult the product manual for specific part numbers, making it easier to find exactly what you need. Regular replacement of worn parts helps maintain the overall efficiency and effectiveness of the knockout punch unit.
  • 題: Where can I buy Greenlee 742BB Knockout Punch Unit in Hong Kong?

    回答: You can purchase the Greenlee 742BB Knockout Punch Unit through Ubuy in Hong Kong. Ubuy is known for its extensive selection of tools, including professional-grade equipment, ensuring you find exactly what you need for your projects. Their platform provides convenience and accessibility, making it an excellent choice for acquiring quality tools.

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優點

  • Easy to use
  • Durable construction
  • Highly efficient
  • Compact design
  • Excellent performance

缺點

  • A bit heavy for some users.

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“Good product, and smooth delivery!”

18-Jul-26 · via Trustpilot
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“Great products and services”

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“Ubuy Hong Kong is a game-changer. I was looking for a specific American brand that doesn't ship to Asia, and Ubuy had it in stock. The selection of global products is incredible. It saves me the hassle of using freight forwarders or asking friends to bring items over. The process was seamless from checkout to delivery”

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“I?m always nervous buying electronics and skincare online, but Ubuy Hong Kong delivered exactly what I ordered and it was 100% genuine. It?s refreshing to find a platform that you can actually trust with premium brands. Will definitely be a returning customer.”

3 July 2026 · via Trustpilot
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HKD 6619

現在訂購，約可在下列時間收貨： 星期四, 九月 10

QTY:

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Our Top Logistics Partners
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特色和優勢

  • Can punch quick clean holes through metal up to 10 gauge
  • Properly assembled through pilot holes, they will make clean, fast and accurate holes
  • Slug falls free in die

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