| Usage/Application | Industrial |
| Brand | Insize |
| Material | Carbon Steel |
| Model Name/Number | 4801 |
| Size | 1-7mm, 7.5-15mm, 15.5-25mm |
| Range | 1-25mm |
Used for checking the concave and concave radii of a curved surface. All leaves are ranged in according to sizes. The blades are specially shaped and can be used to measure fillets and radius against shoulders or corners.
