Precision Indicating Spline Gages offer accurate measurement of effective/actual tooth or space thickness within .0001 by comparison to a set master. Rotating center section measures size variations while transferring its motion to an indicator for digital/dial readout. Available with outputs for SPC. Our Combo Spline Checker can precisely check tooth/space thickness and also check taper, hollow, crown and out-of-round. Internal or external models available.