3-D CNC mills allow complex mold shapes to be machined with exacting detail and to extremely close tolerances. Our CNCs run at 10,000 rpm and can precisely cut through four inches of aluminum 3-D shapes in minutes (and almost as quickly for stainless steel shapes). We use only top grade aluminum to produce long lasting molds. This enables us to run small batches as well as batches of several million blisters on the same mold.