The Insize Telescopic Gauge Set provides a versatile solution for accurately measuring internal diameters of bores, holes, and recesses in professional machining, engineering, and inspection applications. Covering a wide range from 8–150 mm, the telescopic gauges expand to fill the bore and transfer the measurement to a micrometer or caliper for precise reading. These gauges are engineered for repeatability and accuracy, ensuring reliable measurements for both small and large internal features.