1. Pullover Gage The operator places the part between vertical centers, and then pulls the probe unit forward. The probes engage pnuematically and the operater reads the measurement off of the computer screen. Added:10/7/2009 | 2. Master in Gage The part sits in a fixed lower center and retractable upper center. When the probe unit is pulled over the part, nine probes make contact and measure diameter in five places, and shoulder height in two places. Added:10/7/2009 | 3. Gage-Chek display The Gage-Chek computer displays +/- diameter and height readings in column and direct readout form. Added:10/7/2009 |