Brass Crank Key For Grandfather Clock Winding, 3mm Square Pinion Tool, Longcase Clock Winder, Pro Grade Hand Tool For Vintage And Modern Movements, Rugged Jewelry Grade Brass, Tight Fit For Reliable Wind

Brass Clock Crank Key for Grandfather Clocks - Pro Grade
✔️ 3mm square pinion, rugged brass, tight fit for reliable wind

This brass clock crank key is designed to wind grandfather clocks and longcase clocks, suitable for both vintage and modern movements. To choose the correct size, measure the width of your clock's square winding pinion and select a key that is slightly larger for a snug, non-slip wind.

✅ Material: rugged jewelry-grade brass
✅ Pinion size: 3mm square pinion
✅ Compatibility: grandfather and longcase clocks
✅ Fit: tight to prevent slipping during winding

💡 What is a clock winding key used for in grandfather and longcase clocks?

This handy tool winds the clock's mechanical movement by engaging the square winding pinion. - fits 3mm square pinions on many longcase movements - winds without slipping or causing wear on pinion teeth - crafted from rugged jewelry-grade brass for durability ✝️