This 9-inch caulking gun features an aluminum alloy handle and adjustable thrust ratio for precision. With a dripless switch and 400lb push force, it's perfect for professional and DIY projects requiring clean application. • Adjustable thrust ratio of 10:1 and 20:1 allows users to customize the application force, ensuring precise and efficient caulking. • 400lb push force delivers powerful application, reducing hand fatigue and improving efficiency during extended use. • The 9-inch size provides optimal control and precision for detailed caulking tasks, making it ideal for both small and large projects. • Aluminum alloy handle offers lightweight durability, ensuring the caulking gun withstands frequent use without compromising comfort. • Triple steel gripper ensures a secure hold on the caulking tube, preventing slippage and ensuring consistent application. • Steel trigger provides robust performance and reliability, enhancing user control and reducing the risk of slippage. • Blasting surface rod enhances the smoothness of application, reducing air pockets and ensuring a professional finish. • Large hook allows for easy hanging and storage, keeping the tool accessible and organized when not in use.