ESCO Helmet EA998 series

It has a lifespan 5 to 10 times longer than steel ring gauges.This is a threaded ring gauge with an aluminum outer ring.The outer ring acts as a guide when inserting the workpiece.When inserting the workpiece, the inner diameter of the workpiece Prevents the workpiece from collapsing and makes it difficult to cause "rolling". Even non-experts can smoothly judge whether the workpiece is acceptable or not, improving work efficiency. It improves the convenience of insertion, so processes such as 100% judgment are made. The outer ring acts as a protective ring, which prevents the gauge from chipping if it is dropped. It is non-slip and can be handled with bare hands, improving work efficiency. Dirt from your hands will not stick to the gauge.