Kimble/Kontes KIMAX Filling Funnel 28950-25 Review

The Kimble/Kontes KIMAX Filling Funnels, Short Stem, 58 Angle, Kimble Chase 28950 25: Is It Really That Good?

The Kimble/Kontes KIMAX Filling Funnels, Short Stem, 58 Angle, Kimble Chase 28950 25 might not be the kind of gear that immediately screams “tactical,” but hear me out. For anyone involved in reloading ammunition, mixing custom lubricants for firearms, or even preparing solutions for cleaning and maintaining gear in the field, precise fluid handling is critical. These funnels, manufactured by Kimble/Kontes, promise a blend of chemical resistance, thermal stability, and optimized flow – qualities that are surprisingly relevant to the demanding world of outdoor and tactical operations.

My interest in these particular funnels stemmed from a frustrating series of spills and inconsistent mixes while reloading specialized ammunition for long-range shooting. I needed something more reliable and precise than the cheap plastic funnels I had been using. The Kimble/Kontes name, known for quality labware, caught my eye. Their reputation for chemical resistance and accurate dimensions made them a strong contender.

Upon unboxing, the immediate impression was one of quality. The glass felt substantial, and the molded rim gave it a sturdy, professional feel. The fire-polished stem was smooth and precisely sized. Compared to the flimsy plastic funnels I was replacing, the Kimble/Kontes felt like a serious upgrade. I considered a similar funnel from Pyrex, but the Kimble/Kontes 58-degree angle was specifically marketed for faster filtration. Ultimately, I chose the Kimble/Kontes KIMAX Filling Funnels, Short Stem, 58 Angle, Kimble Chase 28950 25 because of its reputation for durability and its optimized design for efficient fluid transfer.

My initial excitement was mixed with a bit of skepticism. Could a simple funnel really make that much of a difference? I was eager to put it to the test and see if it lived up to the hype.

Real-World Testing: Putting Kimble/Kontes KIMAX Filling Funnels, Short Stem, 58 Angle, Kimble Chase 28950 25 to the Test

First Use Experience

My first test of the Kimble/Kontes KIMAX Filling Funnels, Short Stem, 58 Angle, Kimble Chase 28950 25 was in my reloading room, preparing a batch of precision .308 Winchester rounds. I was working with various powders and solvents, including some aggressive bore cleaners. The funnel was used to accurately pour powder into cases and to mix small batches of lubricant for resizing.

The performance was immediately noticeable. The 58-degree angle did seem to facilitate faster and smoother flow of the powder. There were no static cling issues, which I often experienced with plastic funnels. The chemical resistance was also reassuring, knowing that the solvents wouldn’t degrade the funnel over time. Using it was straightforward; the short stem allowed precise control over the pour, minimizing spills. After the first use, I was impressed with the ease of cleaning and the lack of any residue clinging to the glass.

Extended Use & Reliability

After several months of regular use, the Kimble/Kontes KIMAX Filling Funnels, Short Stem, 58 Angle, Kimble Chase 28950 25 has proven to be a reliable and durable tool. There are no signs of wear and tear, despite repeated exposure to various chemicals and cleaning agents. The glass remains clear and unblemished.

Maintenance is simple. A quick rinse with warm soapy water is usually sufficient. I occasionally use a mild solvent to remove stubborn residues. Compared to my previous experience with plastic funnels that would stain and degrade over time, the Kimble/Kontes funnel is a significant upgrade. Its longevity and consistent performance have definitely exceeded my expectations.

Breaking Down the Features of Kimble/Kontes KIMAX Filling Funnels, Short Stem, 58 Angle, Kimble Chase 28950 25

Specifications

• Top I.D.: 25 mm: This refers to the inner diameter of the funnel’s opening, determining the maximum size of particles or the volume of liquid that can pass through easily. The 25mm opening strikes a good balance for most reloading powders and solvents used in gun maintenance.
• Stem O.D.: 6 mm: The outer diameter of the stem is 6mm, allowing for a controlled flow rate. This is crucial for precise dispensing of fluids into small containers or cartridge cases.
• Fits Paper Dia.: 42.5 mm: This specification indicates the size of filter paper that can be used with the funnel for filtration purposes. While less relevant for reloading directly, it’s useful for filtering cleaning solutions or lubricants.
• Cone Volume: 3 mL: The cone volume of 3mL speaks to the design’s efficiency in handling small quantities of liquid. It ensures minimal loss of fluids during transfers.
• Stem Length: 40 mm: The 40mm stem length provides adequate reach without being unwieldy. This allows for controlled pouring into various containers.
• Kimble Chase No.: 28950 25: This is the unique identifier for this specific funnel model within the Kimble/Kontes product line. It ensures accurate reordering and identification of the product.
• 58° Funnel Angle: The unique 58° angle, optimized for faster and more effective filtration than the standard 60° funnel design, is a key selling point. This means fluids and powders move through the funnel more efficiently, saving time and reducing the likelihood of clogs.
• Constructed from KIMAX Borosilicate Glass: This construction gives the funnel high resistance to chemical attack, as well as mechanical and thermal shock. This ensures the funnel can withstand harsh chemicals and temperature changes, making it suitable for various applications.
• Meets ASTM E1095, Type 1, Class A Requirements: This means the funnel is manufactured to precise standards for quality and accuracy. This assures users of its reliability and consistency.

These specifications are essential because they directly impact the funnel’s performance and suitability for specific tasks. The precise dimensions ensure accurate dispensing, while the materials guarantee durability and chemical resistance.

Performance & Functionality

The Kimble/Kontes KIMAX Filling Funnels, Short Stem, 58 Angle, Kimble Chase 28950 25 performs its job admirably. The combination of its design and materials enables efficient and precise fluid transfer.

The strength lies in its chemical resistance, durability, and optimized flow. One weakness is its fragility compared to plastic options.

The Kimble/Kontes KIMAX Filling Funnels, Short Stem, 58 Angle, Kimble Chase 28950 25 has met and exceeded my expectations. Its performance and longevity make it a worthwhile investment.

Design & Ergonomics

The funnel’s design is simple yet effective. The glass construction provides a solid, quality feel, with a comfortable weight.

It is very user-friendly and there’s virtually no learning curve. Its intuitive design makes it easy to use for anyone familiar with basic laboratory equipment.

Durability & Maintenance

The funnel should last for years with proper care. Its robust glass construction ensures excellent resistance to wear and tear.

It is easy to maintain and repair if needed. Simple cleaning and careful handling are sufficient to keep it in good condition.

Accessories and Customization Options

The Kimble/Kontes KIMAX Filling Funnels, Short Stem, 58 Angle, Kimble Chase 28950 25 is a standalone tool and doesn’t come with accessories or specific customization options. Its compatibility with standard filter papers is its main customization aspect.
There are no official accessories or customization options, but it can be used with various stands and holders designed for laboratory glassware.

Pros and Cons of Kimble/Kontes KIMAX Filling Funnels, Short Stem, 58 Angle, Kimble Chase 28950 25

Who Should Buy Kimble/Kontes KIMAX Filling Funnels, Short Stem, 58 Angle, Kimble Chase 28950 25?

The Kimble/Kontes KIMAX Filling Funnels, Short Stem, 58 Angle, Kimble Chase 28950 25 is perfect for serious reloaders, gunsmiths, and anyone who regularly mixes or transfers chemicals for firearm maintenance. Those needing precise, durable, and chemically resistant fluid handling will benefit most.

Casual shooters or individuals who only occasionally reload might find the price prohibitive. This product may also be unsuitable for situations where extreme portability and impact resistance are paramount.

A sturdy funnel stand or holder is a must-have accessory to prevent accidental tipping or breakage.

Conclusion on Kimble/Kontes KIMAX Filling Funnels, Short Stem, 58 Angle, Kimble Chase 28950 25

The Kimble/Kontes KIMAX Filling Funnels, Short Stem, 58 Angle, Kimble Chase 28950 25 is a high-quality tool that offers exceptional performance and durability for those requiring precise fluid handling in their activities. Its chemical resistance, optimized flow rate, and robust construction make it a worthwhile investment for serious users.

The price is justified by its longevity and superior performance compared to cheaper alternatives.

I would definitely recommend the Kimble/Kontes KIMAX Filling Funnels, Short Stem, 58 Angle, Kimble Chase 28950 25 to anyone looking for a reliable and precise fluid transfer solution. If you value quality and precision in your reloading or firearm maintenance, this funnel is worth the investment. Get yours today and experience the difference!