ER Spring Collet Tool Holder GOST

ER tool holders are commonly used in machine tool processing. They consist of a tool post body and an ER collet. They are mainly used for clamping and securing straight shank tools such as drills and milling cutters.
1. Multiple specifications: ER11, ER16, ER20, ER25, ER32, ER40
2. Simple operation
3. Wide applicability