Screw assembly Adjustments Inspection Polishing Screw assembly Special rustproof screws are used to join the key posts and other metal components with the body, which is usually made of wood. Adjustments Minute adjustments are made to eliminate rattling between the keys and key posts, and gaps between the pad and tone holes. Before a clarinet leaves the factory it goes through a thorough function test.
Pitch is checked using a strobe tuner.
Polishing The keys and body of clarinets that pass the stringent inspection are polished before shipping.