![Bergeon Reamer 6.47 mm (10444272527)](http://perrinwatchparts.com/cdn/shop/products/64.6200-21-600_600x600.jpg?v=1595350533)
Reamer 6.47 mm Bergeon is a replacement reamer which is inserted into the center shaft of the Bergeon bushing tool. Reamers cut into the plates of the clock, creating a hole to accept the appropriate sized Bergeon bushing. To be used with both bronze and brass bushings with an outside diameter of 6.50 mm.