Tilley

A tight tolerance on a drawing means little if the supplier cannot hold it on every shift, every setup, and every machine in the cell. Cpk machining data is how a capable shop proves that claim with numbers. Instead of showing one lucky inspection, capability indices summarize a history of

A drawing file does not tell you whether a supplier can hold your tolerances month after month. A CNC supplier audit does, because it examines equipment, process discipline, and records instead of promises. Buyers who skip this step often discover problems through escaped parts and missed dates, when fixing the

Same drawing, three suppliers, three very different totals. The gap rarely reflects better machines; it reflects different assumptions about what the price includes. To compare CNC machining quotes honestly, you have to normalize the scope first and weigh the numbers second. This guide lists the line items that quietly skew

Suppliers rarely quote machining the way they quote molded or cast parts, so buyers need a clear view of order minimums before comparing prices. The term CNC MOQ appears early in most sourcing conversations, and it shapes unit price, lead time, and how freely you can revise a design. This

Every aerospace RFQ arrives with a stack of quality requirements, and certification claims sit at the top of the list. That makes the question of AS9100 vs ISO 9001 unavoidable for any buyer sourcing flight hardware. ISO 9001 gives a machine shop a general framework for managing quality. AS9100 starts