【Versatile Compatibility】: Designed to fit models 150, 190, and 250, this air chisel head is compatible with a variety of pneumatic tools including air chisels, wind chisels, and rust removers 【Construction】: Crafted from metal, this air hammer spring ensures long-lasting durability and reliable performance in demanding work environments 【Compact Dimensions】: With a size of 35x32mm, the chisel head is compact yet effective for precision tasks and easy handling during operation 【Multifunctional】: Suitable for use with air hammers and pneumatic tools, providing flexibility for various applications 【Portable and Compact】: The small and lightweight design makes it easy to carry and store, ideal for use in multiple locations Specification: Material: Metal Size: 3.5cm x 3.2cm / 1.38 inch x 1.26 inch Package Includes: 3 x Air Hammer Spring Note: Please allow slight measurement deviations of 1-2cm (0.39-0.79 inch) due to manual measurement