A CNC quote is built from six items: material, machine hours (stock removal and cutting time), tolerance and surface finish, quantity, number of setups and the requested lead time. We read all of them from the drawing or the sample, which is why a photo plus quantity gets you a same-day price.
Material: the same part costs differently in aluminium, mild steel and stainless; stainless is dearer and slower to cut. You may supply the stock, or we source it.
Stock removal: a shaft turned down from 60 mm to 20 mm takes far longer than one from 25 mm. Forged or pre-cut near-net stock shortens it.
Tolerance: putting ±0.01 mm on every dimension does not improve the part, it raises the price. Keep only the two or three truly critical dimensions tight.
Quantity and setup: programming, tooling, chuck setup and first-article inspection are fixed costs. On a single part they land entirely on that part; on fifty they are divided by fifty. That is the answer to 'why is one piece so expensive'.
Setups: every time the part leaves the machine and is re-clamped, there is extra time and extra tolerance risk. On a C-axis lathe turning and milling finish in one setup, so this item drops to zero on most parts.
Lead time: rush jobs squeeze between planned ones; share the delivery date early. To get a quote, send the drawing or a photo of the part with the quantity over WhatsApp.