Description:C16 ER20A 100L Collet Chuck Hoder Straight Shank Chuck Collect Extension Rod  for CNC MillingSpecification:          Model       C16 ER20A           Material       stainless steel           Size       30*16*136mm           Length handle       100mm           Diameter       16mm           Color       silver        Features: -Extended straight shank type handle、 with longer handle body. -Suitable for deep hole processing、 to solve extend depth of processing need. -For reducing the using of extended cutting tool、 reduce the cost of processing、 increase efficiency. -The extension rod diameter and other part all through precision grinding、 eliminate unbalance、 to increase security when cutting.  Package Included:1x Extension rodMore Details: