12.5" Deep Throat Thickness Gage 0-.400" Measuring Range This gage includes a 0-.4” measuring range with a 0-12.5” deep reach, allowing you to measure thickness in hard to reach places. Also included is a 4" Adjustable Post that allows you to measure thicknesses of material that is up to 4" thick. The attached lifting lever makes for one-handed operation, and the included Dial Indicator includes the following specifications…... 0.0005" Graduation 0-0.400" Measuring Range Dimensions are as follows... A: 5.98" Opening B: 12.50" Depth C: 4" Post Height This gage takes approximately 1-2 weeks for production before shipping. Includes Tip Style "E" Ball Tip on Top & Bottom