Brass Clock Winding Key - 5 Odd Sizes

Brass Clock Winding Key

• For clocks with square winding shafts
• Made of brass
• Odd sizes:
• 3mm-1/8 inch (3), External Dimension is 6mm
• 3.5mm-9/64 inch (5), External Dimension is 6.4mm
• 4mm-5/32 inch (7), External Dimension is 7mm
• 4.5mm-0.174 inch (9), External Dimension is 8mm
• 5mm-13/64 (11), External Dimension is 9mm
• Measurements are approximate