Recommended to use a thinner clay slab, and to ensure the slab is sticking to the working surface well for better cutting experience. Photo shown is #3 on atlas.
Cutter Square Base Measurements:
10 x 10 mm (0.39 x 0.39 in)
Micro cut outs are smaller to fit within the base.
All measurements are taken of the bases' exterior dimensions, rounded off to the nearest decimal.