Custom CNC Turning and Milling Parts Supplier with ISO9001 Certification for Industrial Applications

95% of our jobs run between 3 axis and 5 axis simultaneously, so you're not just getting simple turned parts—complex geometries with undercuts and internal threads are pretty much routine with that ±0.001mm tolerance. We've found heat-treated stainlss often moves about 0.02mm after machining, so we rough it, stress-relieve, then finish (that's a detail you wouldn't get form a spec sheet).

Basically everything runs through a 3D vision CMM before shippng, and we do a 100% dimensional check on first articles, then AQL sampling on larger lots, which is but we skip redundancy—COA is issued per batch, not per part.

That ±0.001mm is real but only on a single datum feature, not across the whole part; for overall tolerances we hold ±0.01mm easily, but if you push that across a 500mm feature it's more like 0.05mm after thermal growth during machining.

Anodizing (Type II or III) is our most common callout, but we also do electroless nickel plating at about 0.02-0.05mm buildup, and powder coating (RAL colors) which adds 0.05-0.1mm per side—you'll want to account for that in your thread fits if you're using a painted finish.

Most buyers in aerospace go for 6061-T6 aluminum or 316L stainless, but we've also run titanium (Grade 5) and it's actually easier to machine than 304 if you use coated carbide and high pressure coolant—just mind the tool wear, we get about 40 parts per insert on average.

Lead time for a prototype (1-5 units) is typically 15-20 working days, and for volume (100+) it's 4-6 weeks, but that's always subject to material availability—check your mill's stock on 6061 bar stock before you send the order.