Motor Shaft Collet Chuck ER11 ER16 ER20 A 5-16mm Extension Rod Toolholder CNC
Suitable Chuck: ER11 ER16 ER20. ER straight rod type collet extension handle, the handle body is relatively long, suitable for deep hole processing. For motor Rod Extension,can replace the drill clip,with ER collet perfect match for all kinds of straight shank tools.