Arlette Duarte
14 min readApr 13, 2024

Are you tired of struggling to hold your test tubes in place while performing experiments? Look no further! In this roundup article, we’ll be introducing you to the best test tube clamps on the market, designed to make your laboratory work a breeze. From sturdy and reliable clamps to budget-friendly options, we’ve got you covered.

The Top 10 Best Test Tube Clamps

  1. Eisco Labs PVC-Coated Burette/Test Tube Clamp for Labware Support — Eisco Labs’ PVC-lined burette/test tube clamp offers a firm, no-slip grip for fragile labware, accommodating items from 15mm to 45mm in diameter, with adjustable angle and length for optimal support.
  2. Stainless Steel Test Tube Clip for Safe and Comfortable Hold — The A2zscilab Stainless Steel Test Tube Clip ensures comfortable and secure use in laboratory experiments, featuring finger grips and a self-closing mechanism to keep hands safe and hold hot test tubes with ease.
  3. High-Strength Alloy Burette Clamp for Precision Testing — Eisco Labs’ 7/8" capacity burette clamp features high strength alloy spring-loaded jaws, suitable for all burettes up to 100mL, providing long-lasting performance and versatile use in laboratory settings.
  4. Economical Spring Steel Wire Test Tube Clamp with Finger Grip — Eisco Labs’ Plated Spring Steel Wire Test Tube Clamp with Finger Grip offers ultimate comfort, ease of use, durability, and space efficiency, making it the perfect choice for both classroom and lab settings.
  5. Test Tube Clamp with Finger Grips — Organize your lab with ease using the United Scientific Supplies TTCL01 Test Tube Clamp — a reliable, self-closing option available in both brass wire and steel wire with a brass finish.
  6. Powder-Coated Test Tube Clamp with Spring-Loaded Jaws — Experience the power of precision with Eisco Labs’ Burette/Tube Clamp, featuring spring-loaded, high-strength alloy jaws and a 7/8" width capacity capable of gripping burettes up to 100mL.
  7. Frey Scientific Stoddard Test Tube Clamps with Grip Pack of 10 — Efficiently secure and organize your test tubes with Frey Scientific’s Stoddard-style clamps, available in both gripped and non-gripped versions for lab or educational use.
  8. Frey Scientific Stoddard Test Tube Clamp Pack of 10 — Effortlessly secure and organize your 25mm test tubes with the Frey Scientific Stoddard Test Tube Clamp, featuring rectangular jaws, self-closing spring wire design, and available in a pack of 10.
  9. Brass Wire Test Tube Clamp — Sturdy brass wire clamp perfect for scientific lab applications with self-closing feature in both Brass Wire and Brass Finish options.
  10. Nickel-Plated Steel Test Tube Clamp with Standard Grips — Secure your test tubes with this high-quality, nickel-plated Stoddard-style clamp, featuring 6" length and standard grips for a reliable hold in any laboratory or educational setting.

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Reviews

Eisco Labs PVC-Coated Burette/Test Tube Clamp for Labware Support

Eisco Labs PVC-Coated Burette/Test Tube Clamp for Labware Support | Image

Eisco Labs’ Burette/Test Tube Clamp has become my go-to clamp for supporting delicate labware. The PVC-lined jaws create a firm grip without causing any slippage, making it perfect for burettes, test tubes, and even round-bottomed flasks. The clamp’s adjustable screw jaws allow it to accommodate items measuring from 15mm to an impressive 45mm in diameter, while the threaded rod and wing nut enable a simple, 360-degree angle adjustment.

I also appreciate the attached bosshead, as it fits most standard support rods with ease. However, one downside I’ve encountered is that its length of 13 to 15cm can sometimes make storing the clamp a bit tricky.

Despite this minor hiccup, the Eisco Labs Burette/Test Tube Clamp delivers superior support for a variety of labwares and has made my day-to-day work in the lab much easier.

Stainless Steel Test Tube Clip for Safe and Comfortable Hold

Stainless Steel Test Tube Clip for Safe and Comfortable Hold | Image

During my recent lab experiments, I found this A2zscilab test tube clip to be quite useful in keeping me safe and secure. The spring-action self-closing mechanism made it easy to hold test tubes with the right pressure. However, I did notice that it can only hold test tubes with a maximum diameter of 5cm, which might limit its usage for bigger experiments.

The finger grips were a nice touch, making the experience comfortable and secure. Overall, it’s a great tool to have in your laboratory setup, but do consider its size restrictions when choosing to use it.

High-Strength Alloy Burette Clamp for Precision Testing

High-Strength Alloy Burette Clamp for Precision Testing | Image

I recently gave this Eisco Labs Burette Clamp a whirl in my lab and I have to say, it’s been a game-changer. The high strength alloy jaws really do a great job at holding my tubes and burettes in place without causing any damage. The spring-loaded feature adds an extra level of convenience, allowing me to easily add or remove the clamp without having to use any tools. Plus, the powder coating gives it a durable and long-lasting finish that looks as good as it performs.

That being said, there were a couple of drawbacks I encountered. For some reason, the clamp wouldn’t fit on some of my wider tubes, so I had to remove a bit of the powder coating to make it work. Also, while the clamp is strong enough for most burettes, the small ones tend to wobble just a bit, which can be a minor annoyance.

Still, overall, I’m extremely pleased with this clamp. Its robust construction, combined with its ease of use, makes it a valuable addition to my lab setup. Plus, knowing it’s made by a reputable company like Eisco Labs definitely adds a level of reassurance for me.

Economical Spring Steel Wire Test Tube Clamp with Finger Grip

Economical Spring Steel Wire Test Tube Clamp with Finger Grip | Image

When it came to finding a reliable test tube clamp, I found myself reaching for the Eisco Labs Plated Spring Steel Wire option. The finger grip on this thing was a game changer- it made my experience comfortable and secure, no more worrying about my test tubes slipping out. Its self-closing design makes it effortless to use, I can just place my test tubes in and go.

One of the cool highlights was its minimalistic design. It was lightweight so it didn’t take up much counter space, and compact enough to be easily stored. Its durability made it great for a student like me, it could handle the demands of everyday use without any issues in the classroom or lab.

However, as much as I loved the design, there was a downside. The wire collar could be a bit tight at times, it took a bit of force to align the tubes properly. But overall, it has been a reliable addition to my lab equipment arsenal.

Test Tube Clamp with Finger Grips

Test Tube Clamp with Finger Grips | Image

Lately, I’ve been using the innovative TTCL01 Test Tube Clamp by United Scientific Supplies. I’m absolutely in love with this handy tool, especially its self-closing feature that saves me tons of time during my lab work.

I’ve been using the brass wire version, and the finger grips make it incredibly user-friendly while ensuring a safe and secure grip. The brass finish also adds a nice touch to the overall quality of the clamp.

While there’s not much to criticize, I feel like the steel wire option would’ve been an even more attractive choice due to its sturdiness. But honestly, the TTCL01 is a fantastic addition to my lab supplies.

Powder-Coated Test Tube Clamp with Spring-Loaded Jaws

Powder-Coated Test Tube Clamp with Spring-Loaded Jaws | Image

The Eisco Labs Burette/Test Tube Clamp is a versatile and sturdy option for laboratory use. With its double clamp design, it’s capable of holding objects up to 7/8" in width or diameter, making it suitable for a wide range of test tubes and burettes. The clamp is built with high strength alloy jaws that are spring-loaded to ensure a secure grip, and it can accommodates rods up to 16mm in diameter.

Eisco Labs prides itself on manufacturing its products using top-quality machinery and adhering to strict quality control measures. Each item is thoughtfully designed by a team of experts to guarantee durability and effectiveness in even the most demanding laboratory settings. The burette clamp is coated in powder for a long-lasting finish and can handle up to 100mL burettes.

While this clamp might not be the most visually appealing option out there, its practicality and durability make it a solid choice for any laboratory setting. Its high strength alloy construction and powder coated finish ensure it can withstand the rigors of day-to-day use, providing a reliable tool for researchers and scientists alike. Overall, the Eisco Labs Burette/Test Tube Clamp is a dependable and functional choice for any laboratory in need of a trustworthy test tube or burette holder.

Frey Scientific Stoddard Test Tube Clamps with Grip Pack of 10

Frey Scientific Stoddard Test Tube Clamps with Grip Pack of 10 | Image

Meet the Stoddard Test Tube Clamp with Grip set, a pack of 10 clamps designed for laboratory and educational use. Crafted with durable nickel-plated steel, these clamps come in two variants: some with finger grips, others without.

Each clamp boasts rectangular jaws opening up to a generous 1-inch, enabling it to securely hold 25mm test tubes. A self-closing spring wire mechanism ensures stability, even in precise experiments. The grips, though optional, provide a comfortable and convenient handle, perfect for long hours in the lab.

A crucial thing to note, the Stoddard Test Tube Clamp with Grip is not for kids under 13 years. It’s designed exclusively for use in a lab or educational setting, emphasizing its adult-only applicability. With dimensions of 1.25 x 13 x 13 inches and weighing just 0.9 ounces, these clamps are portable and space-efficient, fitting neatly into any lab setup.

Frey Scientific Stoddard Test Tube Clamp Pack of 10

Frey Scientific Stoddard Test Tube Clamp Pack of 10 | Image

When I first used the Frey Scientific Stoddard Test Tube Clamp, I was impressed by its simplicity and functionality. These clamps are designed to securely hold test tubes of up to 25mm in diameter, making my experiments in high school and college much more organized.

The rectangular jaws on the clamp open up to 1 inch, which is perfect for accommodating a variety of test tube sizes. The self-closing spring wire clamp feature ensures that the tubes stay in place during experiments and manual handling.

However, the clamp’s grip can be a bit challenging to close, especially when using thicker gloves. The clamp also requires a bit of force to close the jaws, but this makes it more secure when holding the test tubes.

While it’s not the flashiest laboratory tool, the Frey Scientific Stoddard Test Tube Clamp proves its worth when it comes to keeping your experiments well-organized and stable. Its design is perfect for high school and college-level experiments, ensuring that students have the proper tools to carry out their studies.

Brass Wire Test Tube Clamp

Brass Wire Test Tube Clamp | Image

These United Scientific test tube clamps offer a practical solution for securing test tubes in a laboratory setting. The clamps feature brass wire construction without finger grips, allowing for a firm hold without causing discomfort.

The self-closing mechanism ensures a reliable hold on your test tubes while maintaining ease of use. Choose from either the brass wire or brass finish options to match your lab’s aesthetic.

As a versatile and efficient tool for any researcher or scientist, these clamps provide a reliable and secure grip for your test tubes.

Nickel-Plated Steel Test Tube Clamp with Standard Grips

Nickel-Plated Steel Test Tube Clamp with Standard Grips | Image

A few weeks ago, I stumbled upon the GSC International 4-ttcs12 Test Tube Clamp, and I’ve been putting it to the test in my daily life ever since. This Stoddard-style clamp, standing at 6 inches tall, has been a true game-changer when it comes to keeping test tubes secure.

I must say, the nickel-plated steel construction gives these clamps a sleek and sturdy appearance. Not only do they look the part, but they’ve also proven to be incredibly durable. The standard grips make it a breeze to attach and remove test tubes without any hassle.

However, as with most lab equipment, safety comes first. Before using this clamp, it’s essential to read and understand the product warnings. These clamps are only suitable for those working in a laboratory or educational setting and are not intended for children under the age of 13.

In conclusion, the GSC International 4-ttcs12 Test Tube Clamp is an excellent addition to any lab or educational setting, providing both functionality and durability. Just remember to always prioritize safety and follow the necessary precautions when using any laboratory equipment.

Buyer’s Guide

When it comes to laboratory research or educational purposes, a reliable test tube clamp is an indispensable piece of equipment. These clamps help hold test tubes securely while performing various experiments, ensuring safety and stability during the process. In this buyer’s guide, we will discuss essential features to consider when purchasing a test tube clamp, as well as general advices to ensure optimal performance.

Important Features

When searching for the right test tube clamp, take note of the following features to ensure its durability, functionality, and compatibility with your needs. These are the key components to consider before making a purchase:

  1. Material, 2) Clamping Mechanism, 3) Locking System, and 4) Size and Adjustability.

Material

Test tube clamps can be made from various materials such as stainless steel, aluminum, or plastic. Stainless steel is a popular choice due to its strength, corrosion resistance, and durability. While aluminum is lighter and less costly, it’s not as robust as stainless steel. Plastic may be economical, but its durability may be compromised under stress.

Clamping Mechanism

The clamping mechanism is crucial for the clamp’s performance. Screw-type clamps offer better retention, but they may require more effort to adjust. Snap-type clamps provide quick adjustments, but they may not hold the test tubes as securely. Choose a clamp with a clamping mechanism that suits your needs.

Locking System

A reliable locking system is essential for maintaining a secure hold on test tubes. Look for clamps with a locking mechanism that is easy to use and provides a firm grip. Avoid clamps without a locking system, as they may cause unwanted leaks or spills during experiments. Additionally, ensure the locking system is tamper-proof to prevent accidental releases.

FAQ

What are Test Tube Clamps used for and what are their benefits?

Test Tube Clamps are designed to secure test tubes in various laboratory setups. They provide stability, prevent spills or accidents, and help in organizing lab equipment. By using Test Tube Clamps, scientists and researchers can ensure precision in their experiments and maintain a safe working environment. Benefits include improved laboratory safety, better containment of samples, and easy accessibility for multiple tubes in a single clamp.

Additionally, Test Tube Clamps can be used in many different types of research, from chemistry and biology to medical and environmental studies. They are versatile and adaptable, making them an essential tool for any laboratory setting. By keeping test tubes secure, Test Tube Clamps enable consistent and reliable research results.

What materials are Test Tube Clamps typically made of?

Test Tube Clamps are usually made of materials that are durable, lightweight, and easy to clean, such as stainless steel, plastic, or polycarbonate. Stainless steel Test Tube Clamps are resistant to corrosion and maintain their strength even under harsh laboratory conditions, making them a popular choice for many researchers. Plastic and polycarbonate Test Tube Clamps offer the advantage of being non-magnetic and lightweight, which is important in laboratories where sensitive equipment is used.

Regardless of the material, Test Tube Clamps are made to withstand constant use and the potential for accidental drops or impacts. It is essential to choose a clamp that is suitable for your specific lab environment and the types of test tubes you will be using, as well as meeting any safety requirements you may have.

How do I choose the right Test Tube Clamp for my lab?

Selecting the right Test Tube Clamp depends on several factors, including the size and type of test tubes you need to hold, the laboratory environment, and any safety requirements. Consider the following questions when making your choice: what is the diameter and height of your test tubes, what is the material of your test tubes, and are they round-bottom or flat-bottomed?

Additionally, you should consider the clamp’s material, design, and intended use. For instance, a clamp with a ratcheting mechanism may be more suitable for a busy lab where test tubes are frequently swapped, while a clamp with a rotating mechanism might be better for a lab where multiple tubes need to be accessed frequently.

Are there any Test Tube Clamps with adjustable or customizable settings?

Yes, there are Test Tube Clamps available with adjustable or customizable settings. These types of clamps provide greater flexibility and can accommodate a wider range of test tube sizes and shapes. Clamps with adjustable jaws can be tightened or loosened according to the requirements, while some clamps may feature a locking mechanism to secure test tubes in place more securely.

Customizable Test Tube Clamps may also include adjustable clamping force, which helps prevent the crushing of delicate test tubes and ensures their integrity during transportation or storage. Consider the research you are conducting and the level of customization you need when selecting the right Test Tube Clamp for your lab.

Are there different sizes of Test Tube Clamps?

Yes, there are different sizes of Test Tube Clamps, often categorized by the size of the test tube they are designed to hold. Common sizes include: small (16x125mm), medium (18x125mm), large (20x125mm), and extra-large (25x125mm). It is essential to choose a clamp that is suitable for the size of your test tubes, ensuring they are securely held and preventing any accidental spills or damage.

Additionally, there are universal Test Tube Clamps that are designed to accommodate a variety of test tube sizes. These clamps can be an excellent option for labs that use different sizes or shapes of test tubes frequently. Make sure to consider the size of your test tubes and the versatility of the clamps when selecting the most appropriate size for your lab.

Do I need any additional tools or accessories to use Test Tube Clamps?

No, in most cases, you will not need any additional tools or accessories to use Test Tube Clamps. They are designed to be user-friendly and easy to operate. Simply insert the test tube through the clamp’s opening, secure it in place, and use the clamp’s locking mechanism to ensure the test tube is held securely. Some test tube carriers or racks may require additional tools for assembly, but these are typically rare exceptions.

It is always a good idea to read the manufacturer’s instructions or product specifications for your specific Test Tube Clamp to ensure you are using it correctly and safely. Follow proper handling and cleaning protocols, and be mindful of any potential limitations or precautions outlined by the manufacturer.

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