Features • Metal Construction: Crafted from high-quality metal, this gauge ensures long-lasting performance and resistance to wear, making it a reliable choice for all your measurement needs • Smooth Probe Design: The inner diameter gauge features a smooth probe with an optimal curvature, allowing for easy and measurements of holes without damaging s • Secure Locking Mechanism: Equipped with a user-friendly locking device, you can easily tighten or loosen the gauge for secure measurements, enhancing accuracy and efficiency in your work • Non-Slip Handle for Comfort: Designed with a plaid non-slip handle, this tool provides a comfortable grip, allowing for better control and convenience during measurements • Versatile Measuring Range: With a telescopic range of 3.5in to 5.9in (90mm to 150mm), this 6-piece set offers versatility for various applications, making it an ential addition to your hardware tools collection Features: 1、The adjustable inner diameter gauge is made of high？quality metal, making it not easy to and . 2、The of the inner diameter gauge is smooth, and the curvature of the probe is good. 3、The telescopic gauge has a locking device at the tail, which can be tightened clockwise and loosened counterclockwise 4、Our product is designed with plaid non？slip handle, making it more convenient for measurement. 5、The telescopic gauge measuring range is about 3.5in to 5.9in (90mm to 150mm), including 6？piece sets. Specification: Item Type: Adjustable Inner Diameter Gauge Measuring Range: Approx. 90-150mm / 3.5-5.9in Accuracy: 0.01 How to Use: 1. Pinch the inner diameter ruler tightly and put it into the object to be measured. 2. Rotate once to ensure that there is no skew. 3. After the measurement is correct, tighten the lock clockwise. 4. After locking, measure the inner diameter data with a caliper. Package List: 1 x A Type Inner Diameter Gauge 1 x B Type Inner Diameter Gauge 1 x C Type Inner Diameter Gauge 1 x D Type Inner Diameter Gauge 1 x E Type Inner Diameter Gauge 1 x F Type Inner Diameter Gauge Package List 1 x A Type Inner Diameter Gauge 1 x B Type Inner Diameter Gauge 1 x C Type Inner Diameter Gauge 1 x D Type Inner Diameter Gauge 1 x E Type Inner Diameter Gauge 1 x F Type Inner Diameter Gauge