1. STAINLESS STEEL CONSTRUCTION: Made of stainless steel, this cone probe gauge depth ruler is built for longlasting durability and reliability in various applications. 2. ACCURATE MEASUREMENT: Designed for precise gap and hole inspection, this measuring ruler provides accurate measurements for a variety of purposes. It allows you to easily determine the depth or width of gaps and holes, making it suitable for industries such as construction, railways, electricity, and automotive. 3. EASY TO USE: With a compact design and lightweight construction, this feeler gauge is easy to handle and convenient to use. It can be effortlessly placed in the measured gap or opening, ensuring easy readability and efficient measurement. 4. APPLICATIONS: With its wide range of uses, this cone probe gauge depth ruler is suitable for various industries and scenarios. It is ideal for measuring gaps and holes in construction, railways, ceramic sanitary ware, automotive windshields, and more.