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Holemaking. A layperson might think, “what could be simpler?” But a machinist knows better because there’s a lot to consider when creating a streamlined toolpath.

Unlike its name, the use of shrink-fit tooling is expanding. A shrink-fit toolholder starts with a slightly undersize bore that is heated to enlarge the inner diameter enough to accept a cutting tool and then grip the cutter as it cools and contracts.

Many job shops hold onto traditional, inexpensive tooling systems. ER collets and Weldon flats are tried and true; they work and are proven. At the same time, newer, advanced machining technology, such as multi-axis machines, may perform better when newer, advanced (and more expensive) toolholders are deployed.

There’s more than one way to finish a hole. The most effective option will depend on the number of parts, cycle time and tolerances. One of the most effective options is boring.

November 2020 U.S. cutting tool consumption totaled $151.3 million, according to the U.S. Cutting Tool Institute (USCTI) and AMT – The Association For Manufacturing Technology.

The new i-ONE system of exchangeable micrograin carbide drill inserts and premium tool steel holders with coolant channels is based on coating advances and optimized designs for higher tool life and changeover speed, according to tool manufacturer YG-1.

Solid-carbide round tools have seemingly been around forever; before them, high-speed steel (HSS) tools ruled the roost, and after them a growing selection of alternative processes like indexables, EDM, waterjet and now additive manufacturing emerged as competition.

Hockley Pattern & Tool, Halesowen, England, is an example of a company dedicated to the art and science of making perfect tooling.

Processed Metal Innovators LLC (PMI), Bloomer, Wis., is a metal fabricator that produces hundreds of different stamped and welded metal parts for heavy equipment, automobiles, appliances, and more.

Workholding needs to be super-sized when machining workpieces like truck transmission housings, wind turbine blades, rocket bodies, and more, for industries like aerospace and defense, agricultural, energy, marine, rail, and on- and off-road transportation.