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Taper Slot Gauges
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Taper slot gauges have an elongated steel gauge or steel leaf or set of steel leaves that are used to accurately measure holes or slots. The gauge is inserted into a hole or slot and the standard and metric measurement increments on the leaf are used for recording diameter measurements. Sets often have a locking mechanism that keeps the leaf in use positioned appropriately while also keeping the other leaves out of the way. They are commonly used in tool and die making, bearing work, and gaging slots as well as for other general machining and metalworking applications.