20x20x20 calibration with a twist

This is a twist on the standard 20 mm calibration cube.

The base is a 20 mm x 20 mm x 10 mm solid block. In the middle of the block is a 10 mm diameter cylindrical hole that goes straight through. That's where the two pegs come in. The cylinder with the number 3 on top is 9.7 mm in diameter. And the cylinder with the number 2 on top is 9.8 mm in diameter. Ideally, both should fit into that 10 mm diameter hole.

On top of the block, there is a 4.5 mm thin wall frame. This thin wall con