The Starrett SD167 Radius Gage Decimal-Inch Set with Holder Features 26 Gages with Holder: .010 -.025 radii range with .005 increments, .030 -.100 radii range with .010 increments, .120 -.300 radii range with .020 increments, .350 -.500 radii range with .050 increments . SET, Decimal/Inch, 26 Gages with 110 Holder.