The key cutter may need some expertise. I recently had keys cut at a swap meet and got a full play-by-play of the struggles caused by the configuration. Cutting machines have stops to prevent the cutting wheel from damaging its own fixtures. Due to the particular nature of my ignition key (minimum retained material) the operator needed to gin up shims for holding the blank. It helped greatly that the car was nearby for testing. Your keys may be easier or similarly challenging. It isn't rocket science though.