The Betterley Una-Gauge is a multipurpose measuring device that can help any woodworker set up machines accurately and simply. The gauge comes with a variety of attachments that can be arranged in dozens of different configurations, allowing it to handle a variety of setup and alignment tasks around the shop.

The legs of the gauge have rare-earth magnets on the bottom and locating notches for a cross bar that supports a dial indicator. In that configuration, the gauge is used to measure blade and bit heights. With the support bar in its lowest position, you can use the gauge to measure runout on the tablesaw arbor shaft flange.

Shape-shifting setup gauge. The Una-Gauge comes with a miterslot attachment that makes it easy to check whether the tablesaw blade is parallel to the miter slots (left). The gauge also is adept at verifying bit height and projection from the fence (below), say for rabbets.

The legs also can be placed toward one end of the bar for cantilevering the indicator over an opening or onto an adjoining surface. A good example is setting jointer knives and then checking that the tables are coplanar at the throat. The gauge also can measure runout of spindles, collets, and drill chucks, and check blade and fence parallelism.

This is a must-have tool for machine setups (Betterleytools.com).

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