This metric telescoping gauge set is designed for fast, accurate internal diameter measurements between 19–32 mm. The knurled satin-finish body offers a secure, positive grip for precise adjustment, while the hardened, radius‑ground plungers ensure consistent contact and reliable readings when used with a micrometer. Ideal for inspection, machining, and workshop use, it also includes a small‑hole gauge for smaller bore sizes. Supplied in a durable plastic wallet for easy storage and transport, this versatile tool set is perfect for engineers, machinists, and maintenance professionals who require repeatable, high‑accuracy internal measurements.