Features • Measurement Range: Designed to measure inner diameters from 1 to 6.5mm with 0.1mm increments, ensuring high accuracy for all your measuring needs • Stainl Steel Construction: Crafted from premium stainl steel, this tool is resistant to wear and , providing long-lasting reliability in various environments • Clear Laser Engraved Scale: Features a laser engraved numeral scale for easy reading, allowing you to observe measurements quickly and accurately • Efficient and User-Friendly Design: The simple structure of the taper aperture gauge enables fast and convenient measurements, making it ideal for profionals and DIY enthusiasts • Versatile Applications: for measuring the inner diameter of thin-walled parts, plastic pipes, and more, this tool adapts seamlly to a variety of projects Features: 1、[MAIN PURPOSE] The aperture gauge is mainly used to measure the inner hole of thin walled parts, the inner diameter of plastic pipes, etc. 2、[MEASURING RANGE] The measuring range is 1？6.5mm, with 0.1mm division value, has high efficiency and accuracy. 3、[STAINL STEEL] Made of excellent stainl steel material, hard and wear resistant, not easy to or corrode. 4、[LASER SCALE] There is laser engraved numeral scale on the cone , which can clearly observe the readings. 5、[SIMPLE STRUCTURE] The taper aperture gauge structure is simple and reasonable, and the measurement is convenient and quick. Specification: Item Type: Aperture Gauge Material: Stainl Steel Measuring Range: Approx. 1-6.5mm / 0.04-0.26in Accuracy: 0.1mm Package List: 1 x Aperture Gauge Package List 1 x Aperture Gauge