Fowler 54-219-002-0 2" electronic IP65 thread micrometer has ± 0.00008″/0.002mm accuracy and 0.00005"/0.001mm resolution. It has true inch/metric conversion, ABS/INC measuring modes. The thread range is 44 - 3.5 TPI/0.6 - 7mm. 60° measuring anvils. This electronic micrometer has friction thimble, positive spindle lock. Water resistant to IP65 specifications. This micrometer has a full one year warranty on material and workmanship. If you experience any problem contact Fowler directly for warranty claims. Fowler Precision, an American company, manufactures inspection and measurement instruments such as electronic indicators, calipers, bore gages, and digital scales. The company, founded in 1946, is headquartered in Newton, MA.