The Top Choice for Rapid Reed Adjustment The Black Diamond G4 Plaque and Gauge Set from ReedGeek is your all-encompassing reed tool system for flattening reed tables accurately. With the G4 set in hand, you'll never have to worry about throwing out reeds that don't work for you — you can fix them instead! With the included gauge and plaque, you can precisely determine the facing lengths in order to adjust the reed most effectively. You can use the G4 on natural cane and synthetic reeds. At GearNuts, we appreciate how this tool features 100% USA alloy, which makes it exceptionally long lasting and wear resistant. With a round back scraper, a radius tip, and two contoured rail bevels, you now have the power to tweak and adjust your reeds till they function to your exact specifications. ReedGeek Black Diamond G4 Plaque and Gauge Set Features: Make rapid reed adjustments