One caveat is that this search for savings often requires a change of thinking. Previously, the injector body manufacturer saw the critical hole as a boring application. The savings came when the company saw it as a reaming application instead. Something similar frequently occurs in milling work, Mr. Edler says. Many facilities can double their metal-removal rate in milling, but Machining Carbide Inserts doing so requires APKT Insert the counterintuitive step of switching to a high-feed milling tool design that mandates a light depth of cut—lighter than what the shop is taking now. Running this tool at  a substantially higher feed rate can more than overcome the lighter cut to save overall cost. In applications such as these, he says, the cost-effective approach often looks very different from the way that a given part or feature has historically been machined.  

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