Starrett 178MA Fillet or Radius Gage-Metric 1-3mm & 3-7mm 34 Leaves

The Starrett 178 Series Fillet or Radius Inch Reading Gages are very useful for tool and diemakers, machinists, screw machine operators, patternmakers and other mechanics to lay out and check radii of tools, dies, patterns, and more. This model has 34 Leaves with a 1-3mm & 3-7mm Range, 0.25mm/0.5mm increments. The 178 Series is made in two inch sizes and two millimeter sizes. Each gage has leaves for measuring both concave and convex radii, with each leaf stamped with the radius size. Any one of the leaves can be securely locked in position by a locking device. Made of nicely finished, high quality steel.