Gauge for Clock Keys

•Mainspring let down tools are used to safely unwind your clock’s powerful mainspring, so that you may disassemble the movement for proper cleaning and lubrication without injuring yourself and causing extensive damage to the movement. •These tools are designed to fit over your clock’s key, and work for almost all keys currently on the market. •Durable plastic handle with chucks made from quality steel.

For a front escapement Korean 31 day movement; curved rod to swing without hitting the hand shaft. Now in High Quality Stainless Steel Wire!!

Used in conjunction with “C” clamp set.