Wide application: This spring caliper is ideal for woodworking, metalworking, leatherworking, drafting, and more. It provides a versatile tool for craftsmen to perform precise layout and measurement tasks. Multifunctional: Suitable for drawing arcs and circles, creating gauges and dividers, and taking accurate measurements. It supports a range of layout and measuring needs for creative projects. Carbon steel material: Constructed from durable, wear resistant carbon steel to ensure long life and reliable performance in the workshop. Sliding nut design: Lockable sliding nut allows easy adjustments and precise measurements, enabling quick, repeatable setups for professional use. Practical use scenarios: Woodworking: lay out arcs for cabinet doors, circular tabletops, or curved moldings with consistent accuracy. Metalworking: scribe circle templates, mark holes, and set gauges with reliable repeatability. Leatherworking and pattern making: draw smooth arcs and circles for pattern templates and stitching guides.