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This adaptor allows you to install tools with straight bit shank in a half gas spindle, or in a half gas tool holder.
It’s an adaptor heavily used in CNC stone router for engravings and letterings because those kinds of diamond tools have mainly a straight shank fitting.
It’s possible to choose between 4 different fitting models:
This adapter includes the ER Collet Nuts but it does not include the ER Collet.
The thread of these adapters is standard (right-hand), on request, it is possible to supply adapters with left threads.
