Favorite Places Ocracoke Island, NC Engineering Service Providers (ESP) offers low-cost innovative products including our NEW SimpleMillDrill™ Square-Column Benchtop Mill with integrated 3-Axis SimpleDRO. Our SimpleDRO™ Digital ReadOut (DRO) system now features lower, industry leading pricing! Our products utilize our innovative and cost-saving design and packaging approach. We are constantly investigating new technologies to combine with our proven product-development capabilities to offer innovative and cost-effective solutions. Our products are designed to either stand alone or to serve as the basis for the development of higher-level systems by our customers.