Precision CNC Milling Services

Our milling department pairs multi-axis vertical machining centers with in-process inspection to hold demanding geometry the first time and every time after. 5-axis capability lets us machine complex contoured surfaces, undercuts, and angled features in a single setup, which reduces fixturing error and shortens lead times on intricate parts.

Typical machined tolerances run to ±0.0002 in (±0.005 mm) on critical features, with finer control available on select geometry through fixturing and temperature-stabilized machining. Surface finishes down to 16 µin Ra are routinely achievable, and tighter finishes can be reached with secondary operations. Every job travels with a control plan tied to the customer print, and first-article inspection is performed before a production run is released.

We machine part envelopes from small connector-sized components up to work roughly 40 × 20 × 25 in, and we scale seamlessly from a single prototype to recurring blanket-order production. Programming is done from your solid model (STEP, IGES, Parasolid) or 2D drawing (PDF, DXF, DWG), and we can reverse-engineer from a sample when no model exists.

Because milling is often one step in a larger part, Esco routinely combines it with turning, EDM, and downstream finishing — plating, anodizing, heat treat, passivation — managing the full supply chain so you receive a finished, inspected component rather than a work-in-process.