High-Quality Material: Crafted from robust materials that ensure durability and longevity, this expansion screw is designed to withstand heavy use in various plumbing applications. Its sturdy construction guarantees a secure and stable hold for all your drilling needs. Versatile and Adjustable: Featuring a special drilling bracket, this expansion screw is perfect for precise and stable drilling. The adjustable design allows for optimal positioning, making it ideal for both professional and DIY plumbing projects. Detachable and Reusable: Engineered for convenience, the expansion screw can be easily detached and reused, providing exceptional value. This feature is particularly useful for multiple projects, allowing for flexibility and reducing the need for additional purchases. Safe and Reliable: With no high-concerned chemicals used in its manufacture, this product is safe for both the user and the environment. It adheres to rigorous safety standards, ensuring peace of mind during use. Designed in Mainland China: Proudly designed in Mainland China, this expansion screw reflects superior craftsmanship and innovation. While it does not come with specific certifications, its quality and performance are designed to meet the demands of various plumbing tasks. Color: As shown Material: Carbon Steel Package Contents: 4*Water Drill Bracket