Our precision diameter tapes are manufactured to exacting standards in temperature controlled facilities at 68°F (20°C). The lines and numerals on our standard tapes are engraved and acid etched on a ground surface.
The tapes have fixed readings that do not require periodic adjustments. Our standard Imperial tapes (inches) read to 0.001″ diameter with an accuracy of ±0.001″ up to 144 inches. Our standard metric tapes (millimeters) read to 0.01mm diameter with an accuracy of ±0.03mm up to 3,600 millimeters.