The Model 18B staking frame is the sturdiest frame made by K&D. It’s the successor to the Model 17. The Company manufactured these for watchmakers wanting a large die plate and a strong anvil.
This frame shipped without jeweling tools, however, K&D made a jeweling attachment if a watchmaker wanted that functionality. Before K&D added jeweling capabilities to their frames, many watchmakers bought a K&D Inverto and coupled it with a Seitz Jewel Staking Set.
K&D made the 18B for watchmakers who wanted a large die plate and a heavy base.
Note the difference between the 18B and the Model 600. The 18B frame has a 50mm diameter and the 600 has a 35mm diameter die plate.The model 600 is smaller overall and made for hobbyists.
Also note the difference between the model 18B and the 18R Deluxe. It’s difficult to tell, but the 18R has a 45mm die plate versus the the 18B’s 50mm.
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Warning: You may find a model 600 advertised as an 18R. K&D shipped the smaller frame in an 18R box. People that do not know the difference will claim the kit is an 18R. Also, K&D only made one knob for the 18 series and they all say 18R.