Great quality lots of sizes. Worked great on my transmission lines to cooler.

These are proper sealing washers all is a nice organized kit.Buy the whole kit. Because....... when you need it you'll have it.Every shop should have this kit on their shelf.Highly Recommended.

The ZDBB 12 Sizes 378-Piece Bonded Sealing Washer Kit is a comprehensive assortment designed for various automotive and repair applications. Here’s a detailed review of the kit:OverviewQuantity and Variety: The kit includes a total of 378 pieces across 12 different sizes. This range of sizes (M6, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30) ensures that you have the right washer for a wide variety of applications, from small repairs to larger projects.Material: The washers are bonded, which typically means they have a metal core with a rubber or elastomeric seal. This combination provides a reliable seal while also offering durability and resistance to various environmental factors.FeaturesBonded Sealing Design: The bonded design combines metal and rubber, offering both structural integrity and effective sealing. This helps to prevent leaks and ensures a secure fit.Self-Centering: These washers are designed to be self-centering, which aids in proper alignment and installation. This is particularly useful for automotive applications where precise placement is crucial.ProsComprehensive Selection: With 12 sizes included, the kit covers a broad range of needs, making it versatile for various applications including automotive, HVAC, and general repairs.Durable Construction: The combination of metal and rubber enhances the durability and effectiveness of the washers. The metal core provides strength while the rubber ensures a tight seal.Convenient Assortment: Having a kit with multiple sizes in one place is convenient for users who frequently perform repairs or maintenance. It eliminates the need to purchase different sizes separately and helps keep your workspace organized.Automotive and AC Use: The washers are suitable for automotive applications and for use in air conditioning systems, which adds to their versatility.ConsSize Variety: While the kit includes many sizes, some users might find that the specific sizes included do not perfectly match all their needs. It's worth checking the exact sizes to ensure they align with your requirements.Quality Control: As with many multi-piece kits, there can be variability in the quality of individual pieces. It's important to inspect the washers for any defects or inconsistencies before use.OverallThe ZDBB 12 Sizes 378-Piece Bonded Sealing Washer Kit offers a wide range of sizes and a durable bonded design, making it a practical choice for various sealing and repair tasks. The self-centering feature aids in precise installation, and the metal-rubber construction ensures a strong and effective seal. The comprehensive assortment provides good value for users who need multiple sizes for different applications. However, as with any large kit, it's important to verify that the sizes and quality meet your specific needs before use. If you frequently work on automotive repairs or other projects requiring sealing washers, this kit is a solid and convenient choice.

As a DIY enthusiast and car owner, I've found this kit to be an essential addition to my toolbox.The sheer variety of sizes (12 sizes, 378 pieces) is staggering, and the quality of the washers is top-notch. The self-centered design makes it easy to install them, and the metal-rubber construction provides a secure seal.I've used these washers for various projects, from repairing my car's AC system to fixing leaky faucets. They've performed flawlessly every time, and I've saved a significant amount of money by not having to purchase individual washers.The storage case is also well-organized, making it easy to find the right size washer when I need it. Overall, I'm extremely satisfied with this purchase

I recently purchased the ZDBB 378-Piece Bonded Sealing Washer Kit for my PCP compressor, and I’m thoroughly impressed with its quality and versatility. The kit includes a wide range of sizes, from M6 to M30, which made finding the perfect fit for my compressor’s various seals incredibly easy. The combination of alloy steel and synthetic rubber ensures that each washer is both durable and effective at preventing leaks, which is crucial for maintaining the performance of my compressor. The sturdy plastic storage box keeps everything organized and accessible, saving me time searching for the right size during repairs.Using these washers has significantly improved the reliability of my PCP compressor. The self-centering design made installation straightforward, even in tight spaces, and the high-quality materials have held up well under pressure and heat. I also appreciate the thoughtful packaging, as none of the washers were damaged or misplaced upon arrival. Overall, the ZDBB washer kit offers excellent value for the price and has become an essential part of my toolkit. Whether you’re working on automotive projects or maintaining equipment like a PCP compressor, this kit is a dependable choice that delivers both convenience and performance.

Bonded seal washers are the ultimate reusable washer for drain plugs. I've used these on both street and track applications and none of them have ever leaked a drop. No more crush washers or super torque specs, these seal easily and well.

Next time I do plumbing, I'll prefer these over simple rubber washers if there's room in the circumference for the surrounding metal. My set came in good shape, the box didn't crack or open, and everything stayed in its proper cell.

This is an excellent assortment of metric sealing washers. I will use them in a design where the shaft comes through a wall that I want to keep water from passing through.

Well, for the low price, I was shocked about the great quality of the tools and o-rings. The tools are strong and make easier to remove old o-ring even the small ones, the wide range of sizes make easier to find any spare one.