Carfidant milPRO Paint Meter Thickness Gauge for Automotive Car Use - Works on Steel and Aluminum Panels F NF Professional paint meter - for use by thousands of dealers & auto detailing professionals Paint thickness gauge works on steel (fe) and aluminum (nfe) panels Exceptional accuracy and resolution of 0.1 mils Comes precalibrated (also can be recalibrated in 10 seconds with the included hardware) Included is a plastic hard case, carrying pouch, user manual, batteries, and calibration strips