This product is a spiral micrometer developed for precise dimensional measurement in materials research and laboratory environments. Designed with a hardened measuring face and a ratchet mechanism for consistent force application, it ensures reliable readings within 0.01 mm resolution across two measurement ranges: 0–25 mm and 25–50 mm. The model MA-CM-TO-0090 from the DELI brand features a durable frame and clear, easy‑to‑read scale markings, making it suitable for routine thickness or diameter measurements of metal foils, polymer films, and other solid specimens. Its robust construction supports repeated use in quality control or experimental setups where sub‑millimeter accuracy is required. The micrometer is a practical tool for researchers, machinists, and technical personnel needing dependable linear dimension verification.