- Concentricity Gages - Radius Gages - Cylindrical Plugs - Reference Specimen - Cylindrical Rings - Screw Pitch Gages - Cylindrical Squares - Sine Bars - Deltronic Plugs - Spline... & repair lab and a field service technicians group. The hard gage calibration lab calibrates many different types of gages: blocks, rings, cylindrical rings, gage blocks, tapered thread... turnaround is 3-4 days. FVM has the capability to handle hard gaging needs such as: - Angle Blocks - Pitch Mic Masters - Angle Plates - Pin Gages - Combination Squares - Protractors...