French Clock Key Jewelers Mainspring Winding Tool Sz 2

• This is a new French pattern clock key size 2
• This is used to wind French clock mainsprings
• It is steel, plated with nickel
• The hole measures 2.75 mm

New French Clock Key Size 2 This is a new French pattern clock key size 2 This is used to wind French clock mainsprings It is steel, plated with nickel The hole measures 2.75 mm