6 grooved Chuck/Dies: 18.5 mm, 20.2 mm, 22.5 mm, 26.5 mm, 28.3 mm, and 29.5 mm
Double ended steel handle #5537 19.5cm/7.75inches
Storage Box with foam moldings to keep the handle and dies in
Watch Case Open and Closing Propeller Type Wrench by Bergeon. The Bergeon 5537 includes 6 grooved chuck/dies. and is designed to open watch case backs which are grooved, waterproof. The chuck/die sizes are: 18.5 mm, 20.2 mm, 22.5 mm, 26.5 mm, 28.3 mm, and 29.5 mm. Made in Switzerland.
Chuck Number ∅ A mm Number of Teeth 5523-0 18.50 90 5523-1 20.20 96 5523-2 22.50 112 5523-3 26.50 128 5523-4 28.30 144 5523-5 29.50 144
