Brooch Size Style Correction Height (mm.) Main Height (mm.) Brooch Dimensions *(mm)Keyway Width (Cutting Length) * Min.-max.
4mm B1 10.8 9.66 6.45x171.5 B = 4.01 19/64 - 1 11/16
5mm B1 10.8 9.66 6.45x171.5 B = 5.01 19/64 - 1 11/16
6mm C1 16.64 15.02 9.64x298.5 B = 6.01 25/64 - 2 1/2
8mm C1 15.95 14.62 9.64x298.5 B = 8.01 25/64 - 2 1/2