Features: Engineered for accuracy , the valves Spring Height Micrometer delivers accurate measurements from 1.600" to 2.200" with a ±0.001" tolerance, ensuring best valves spring adjustments for top engine performances . Crafted from strong black anodized aluminum, this lightweight micrometer features ergonomic handle for comfortable grip and corrosion resistant construction, ideal for extended use in demanding automotive environment. designs for professional repair man and automotive enthusiasts, this tool is essential for engine tuning, maintenance, and performances upgrades requiring precise spring height verification. Perfect for workshop diagnostics or home garage projects, the micrometer's small design and included storage case ensure easy portability and defense during engine rebuilds or routine valves train inspections. The integrated 0 adjustment function allows quick calibration between measurements, while its universal compatibility with most valves springs makes it a multifunction addition to any automotive toolkit. Specifications: Material: aluminum Size: about 3.7x3.1x3.6cm/1.5x1.2x1.4inch Package Includes: 1xValve Spring Height Micrometer note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.