This industrial-grade pin is a game-changer for precision projects. The stainless STEEL construction ensures durability and longevity. The nominal diameter of 0.0000mm maintains tight tolerances during application so you`ll never have to worry about variances in measurements. The only (minor) con is that the product is so small that it could be difficult to handle for those with larger hands. overall, a fantastic investment for anyone in the industrial and scientific engineering fields..