Enhance your precision measurement tasks with this high-quality Adjustable Inner Diameter Gauge, crafted from durable metal to resist rust and provide long-lasting performance. Designed for accuracy and ease of use, this telescopic gauge features a smooth surface and expertly curved probe for effortless insertion and reliable readings. Key Features: · Premium Metal Construction: Made of high-quality metal, this gauge offers excellent durability and rust resistance for consistent, long-term use. · Smooth Probe Design: The probe’s carefully engineered curvature and smooth surface make it easy to insert into various objects while improving measurement accuracy. · Secure Locking Mechanism: Equipped with a locking device at the tail, allowing you to tighten clockwise to fix measurements firmly in place and loosen counterclockwise to reset. · Ergonomic Non-Slip Handle: The plaid-patterned handle ensures a comfortable and secure grip, enhancing control and convenience during measurement. · Wide Measuring Range: Covers an inner diameter range from approximately 90mm to 150mm (3.5in to 5.9in), suitable for a variety of applications. · Six-Piece Set: Includes six gauges to provide versatile measurement options within the specified range. · High Accuracy: Offers precise measurements with an accuracy of 0.01, ensuring reliable and repeatable results. How to Use: 1. Squeeze the inner diameter ruler firmly and insert it into the object being measured. 2. Rotate the gauge to avoid skew and ensure proper fit. 3. Once the measurement is set, tighten the locking device clockwise to secure the gauge. 4. Use a caliper to measure the locked inner diameter data for exact results. Specifications: · Item Type: Adjustable Inner Diameter Gauge · Measuring Range: Approx. 90-150mm / 3.5-5.9in · Accuracy: 0.01 Package Includes: · 6 x Adjustable Inner Diameter Gauge This Adjustable Inner Diameter Gauge set is an essential tool for professionals and hobbyists who require precise internal diameter measurements. Its sturdy metal construction, smooth probe, secure locking system, and ergonomic handle combine to deliver accurate, reliable, and easy-to-use measuring performance across a broad range of applications.