Round Mainspring “C” Clamp

Set of 4

(Packet of 12 pcs)
Attach to the clock case cabinet to hold key in place and avoids them getting lost.

Key sizes: 5-6, 7-8 and 10-12.
Put chuck in the handle and slowly release the mainspring.

Perfect replacement for damaged and broken governors on English and American wall clock movements. Fan: 1/32” wide.