Jaras 4-in-1 Grand Piano Regulating Rack

The Jaras 4-in-1 Grand Regulating Rack is a tool that has been developed to take the guesswork out of grand piano regulation.  This tool performs the regulating functions with precision.  It is a quality made item which will last a lifetime and pay for itself many times over.  The adjustments that can be made with this tool are: Grand Piano Let-Off, Check String Height, Backcheck Regulating Gauge and Damper Regulating Gauge.  Comes with complete written instructions.