The Superior Blog

Our Mission is Simple | Superior Portable Machine Tools

There are several definitions of superior that can be found in the dictionary. Still, one that rings especially true is “higher in quality.” Those words seem particularly pertinent when talking about Superior Portable Machine Tools (SPR). SPR has only been in business 5 years as of January 2021. We purchased two companies that have been […]

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SPR’s Custom CNC Rotary Milling Machine

Our CNC Rotary Mill is the latest example of SPR’s custom engineering services. Superior’s rotary mill is an internal clamping mill designed to mill and grind circular and non-circular surfaces in both vertical and horizontal orientations. Whether customizing our existing products or creating tools from the ground-up, our engineering group specializes in designing and building […]

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