![Clocks Winding Key Brass 5 Prong ODD Number 3, 5, 7, 9 and 11](http://watchbandsusa.myshopify.com/cdn/shop/files/s-l1600_2_1928c635-147e-4c5b-aaf9-31479ab67b0a_{width}x.jpg?v=1701703989)
- This is a new 5 sided even number brass clock key
- This is used to wind clock mainsprings
- The clock winding key made of Brass (Sizes # 3,5,7,9,11)
- This key square hole Sizes: 3mm 1/8 in (3), 3.5mm 9/64 in (5), 4mm 5/32 in (7), 4.5mm (9), and 5mm 13/64 in (11) for use with winding clocks.
- If you have any questions or concerns about this item before you decide to purchase, please contact me