Wooden Handle Brass Test Tube Clamp (Set of 12)

Product Code : SCL-CL-12012

The Brass Test Tube Holder (Set of 12) is a collection of spring-loaded metal clamp instruments used for securely gripping and holding glass test tubes during intense heating or chemical transfer procedures. Designed for students, researchers, and laboratory technicians, this essential safety tool prevents accidental thermal burns and fluid spills across various science laboratory setups.

Product Description

The Brass Test Tube Holder (Set of 12) from Science Lab Supplies delivers superior durability and exceptional operator protection for high-activity educational and industrial laboratories. Fabricated from premium-grade solid brass strips, each holder features excellent corrosion resistance against aggressive chemical vapors, acids, and accidental reactant splatters. The automated spring-action tension design maintains a reliable, firm grip on standard laboratory glassware without requiring manual adjustment screws or risking sudden structural release.

This bulk package provides an ideal infrastructure upgrade for busy chemistry classrooms, biological research centers, and state diagnostic testing clinics. Unlike easily warped iron alternatives or plastic-coated clamps that melt under stress, this pure brass hardware configuration safely withstands direct flame contact from burners without losing its spring tension. Investing in this resilient kit ensures long-term operational cost-effectiveness and absolute physical protection during day-to-day boiling, mixing, and dispensing tasks.

Key Features

• Corrosion-Resistant Brass: Forged from high-quality solid brass to resist rust, chemical oxidation, and high-heat environment degradation.
• Self-Closing Spring Action: Features a robust internal spring mechanism that applies continuous, secure clamping force to prevent glass breakage or drops.
• Ergonomic Finger Grips: Designed with convenient finger pressure pads that allow operators to compress, align, and open the clamp structure easily.
• Wide Tube Compatibility: Accommodates an expansive array of culture vessels and sample containers ranging from 12 mm up to 25 mm in outer diameter.
• Safe Handling Buffer: The 160 mm overall length creates an adequate physical distance between the operator's hands and high-heat reaction zones.
• Flame Durability: Safely tolerates localized open-flame exposures during aggressive boiling procedures without losing structural tensile strength.

Technical Specifications

What's Included in the Kit

• 12 x Brass Test Tube Holder Clamps
• 1 x Lab Safety and Glassware Handling Protocol Manual

Applications / Uses

• Holding borosilicate culture vessels securely over gas burners during thermal reduction and vaporization reactions.
• Transporting hot containers safely out of boiling water baths to cooling racks without personal injury risks.
• Serving as a baseline, high-durability tool within comprehensive student chemistry science kits.
• Stabilizing delicate glass structures during manual fluid transfers alongside high-precision laboratory glassware components.
• Manipulating volatile or reactive chemical solutions safely over active heating instruments within industrial quality check protocols.

How to Use the Brass Test Tube Holder (Set of 12)

1. Inspect the brass holder before use, ensuring the spring-loaded joint operates smoothly and the gripping jaws align symmetrically.
2. Compress the ergonomic finger grips firmly using your thumb and forefinger to open the circular jaws of the clamp assembly.
3. Slide the open jaws around the upper third portion of the target glass tube body, keeping well below the top rim opening.
4. Release your finger pressure slowly to allow the self-closing brass strips to lock securely onto the glass wall surface.
5. Hold the instrument by the extended rear handle section while placing the container over active heating sources.

Handling Note: Do not position the clamp directly at the absolute top rim or the very bottom of the tube. Placing the clamp incorrectly can cause unexpected fluid blockage or dangerous balance instability during boiling.

Care & Maintenance

• Prompt Cleaning: Rinse the brass holders thoroughly with clean water and mild soap after exposure to acidic fumes or chemical spills to prevent tarnish.
• Spring Maintenance: Apply a single drop of light machine oil to the pivot joint annually to preserve the smooth mechanical action of the spring core.
• Dry Storage: Wipe the metal tools completely dry and store them flat inside a dedicated dry equipment cabinet to maximize service life.

Why Choose Science Lab Supplies

Science Lab Supplies is a premier global manufacturer and trusted exporter of high-grade laboratory instruments, STEM training models, and robust institutional accessories. Leveraging decades of engineering expertise, we produce top-tier laboratory hardware that complies strictly with international safety and quality benchmarks. Our expansive distribution network ensures reliable global supply capabilities to fulfill large shipments for school districts, universities, and commercial test centers seamlessly.

Frequently Asked Questions

What is a Brass Test Tube Holder (Set of 12) used for?

It is an essential safety kit designed to firmly hold glass test tubes during heating or volatile chemical reactions. The set provides 12 identical clamps, making it perfect for multi-station student classrooms or busy commercial testing workflows.

What material is this holder made of?

The entire body and spring mechanism are constructed from heavy-gauge solid brass, offering superior chemical resistance and high structural integrity under intense heat.

What size test tubes can these holders accommodate?

These versatile brass clamps feature a spring-loaded jaw profile that comfortably handles standard laboratory tubes ranging from 12mm to 25mm in outer diameter.

Can this holder be heated directly over a Bunsen burner flame?

Yes, the solid brass construction is fully fire-resistant and built to endure direct exposure to localized open flames during boiling HTML or chemical experiments without melting or losing tension.

Does it require a protective wooden sleeve?

No, the pure brass design features extended flat handle strips that effectively dissipate heat, allowing users a secure grip without needing easily degraded wooden additions.

Explore our comprehensive portfolio of institutional assets by visiting our specialized laboratory hardware category page today to maximize physical protection inside your facility.