Please build these with hard gold fingers and a 30 degree bevel on the edge connector. The files included in this zip: File Name Description: .cmp Layer 1 (component side) .drd Excellon drill file .drl Drill tool description .gpi Photoplotter info file .otl Board outline .plc Component-side silkscreen (nomenclature) .sol Layer 2 solder side .stc Component-side solder mask .sts Solder-side solder mask .txt This file.