Mitutoyo Deep Throat Dial Thickness Gage 1" This Mitutoyo Dial Thickness Gage offers a quick and efficient means of inspection with a convenient grip handle, thumb trigger and spring-loaded spindle. Features include... 0 - 1" Measuring Range .001" Graduation + .002" Accuracy 2N or less Force 4.72" Deep Throat Ceramic Anvil & Spindle