Machinists and toolmakers, this HHIP replacement pin gage is exactly what you need to complete your gage set or replace worn-out pins. With a precise 0.611 inch diameter and Class ZZ tolerance of -0.0002 inches, this pin maintains the accuracy your work demands. Each pin is individually marked with the size for easy identification, saving you time when you're in the middle of a project. The full hardening to 60-62 RC ensures durability and resistance to wear, even with frequent use. The finish is impressive too - smoothed to 10 micron or better for that professional quality you expect from precision tools. At 2 inches overall length, it's easy to handle and store in standard gage sets. Whether you're replacing a missing pin from an existing library, need a specific size for a special project, or just want to expand your measurement capabilities, this pin gage delivers reliable performance. The construction feels solid and precise, not cheap or flimsy like some import alternatives. Perfect for quality control, inspection work, tool room applications, or any situation where exact measurements are critical. The tolerance specification ensures consistency across your measurement system, giving you confidence in your readings. If you're tired of incomplete gage sets or unreliable measurements from worn pins, this replacement brings your tools back to factory specifications. A must-have for any serious machinist, quality inspector, or manufacturing professional who understands that precision starts with accurate measurement tools.