Sherline Horological Milling Machine Bushing and Depthing Accessory 2118

Sherline Horological Milling Machine Bushing and Depthing Accessory 2118Sherline Horological Milling Machine Bushing and Depthing Accessory 2118When a non-jeweled clock or watch arbor pivot rotates for many years, it will, in many cases, wear a path in the movement plate in the direction of force.When this happens, the pinions and wheel teeth no longer properly mesh without adding friction, which, in turn, prevents the movement from functioning properly. To correct this, a hole is reamed in the original location and a bushing is installed in that location, returning the hole to its original size and position.When starting out, most repair people will use a hand set of either KWM or Bergeon reamers and matching bushing assortment. When using hand methods, the common suggested method is to first file an equal length path opposite side of the wear. This is done in hope that the reamer will center itself in the original location by following the path of least resistance. Some days you?re lucky, some days you?re not. This method gets old fast if any number of bushings are done.The Sherline Horological Milling MachineThe Sherline mill offers more precise bushing installation for both clocks and watches. Additionally, it will perform depthing in the same timely fashion for about the same cost as a bushing machine. Current bushing machine prices range from about $800 up to $1,200. A milling machine offers added capabilities for any repair as well as the construction of a movement from bar stock.What You Need to Bush on a Sherline MillWe recommend a 5000 mill with a headstock spacer or 5400 mill. You will need a spacer to fit plates up to 7" wide that cover most commonly encountered movements. A second spacer could be added if ever required.NOTE: We recommend using our 5400 mill over our 2000 mill for bushing. The 5400 model has a fixed column and it is less likely to move when you use the headstock as a bushing

• For clock and watch making
• For use on Sherline Mills
• NEW from Sherline!