Use these RS PRO surface gauges when you need to find the centre of a round section of material. Simply move a gauge across the surface, scribing a line, then rotate it through 90 degrees and repeat until a square is formed. The centre of the square will correspond to the round section's centre.
The stainless steel material used for the gauges has a high level of durability and resistance to oxidation, ensuring a long lifespan. They're held in a lightweight polypropylene (PP) storage case, which protects them effectively while also being easy to transport.
The set consists of 10 separate gauges with a wide variety of sizes, so it's a versatile product. It's ideal for machinists and toolmakers who need to work as accurately as possible and is also suitable for product inspection and maintenance applications.

• One matched pair
• Parallels tester type