Deep Throat Digital Thickness Gage with Roller Contacts and Mitutoyo Digital Indicator This Deep Throat Thickness Gage includes special J50R Roller Contacts designed to measure the thickness of thin, moving material. The gage includes a 0-0.5" measuring range with a 0-12" deep reach, allowing you to measure thickness in hard to reach places. The attached lifting lever makes for one-handed operation. Includes Mitutoyo Digital Indicator with Data Output Capabilities. Features include... 0-0.5" / 10mm Measuring Range 0.0005" / 0.010mm Resolution SPC Output 12" Reach J50R Roller Contacts specifications... 0.331" / 8.4mm Diameter 0.343" / 8.7mm Wide This gage takes approximately 1-2 weeks for production before shipping.