The SuperBar with precision dial indicator can be used to align, tuneup, and calibrate your table saw tolerances to within .001". It can be used to check saw arbor shaft for runout, check the face flange for runout, check the arbor bearing for runout, align the blade parallel to the miter slot, check the blade for runout, and aligning the fence parallel to the miter slot. This precision instrument is lightly used and includes an instruction manual.