Description: C12-ER11A-100L Collet Chuck Holder Straight Shank CNC Milling Extension Rod Specification: Material 40CR Steel Model C12-ER11A-100L Length 125mm Nut: ER11-A type OD 19mm Shank length 100mm Shank Diameter OD12mm, ID7MM Fit for ER11 collet Features: 1, First set collet into the nut, then tighten direct, high rigidity, strong clamping. 2, Straight shank type extended handle, the handle body longer, for deep processing, resolve to extend the depth of processing needs. 3, Can reduce the use of longer tools, which can reduce costs and improve efficiency. 4, Extension rod diameter, and other parts have been precision ground to eliminate unbalanced traffic, increasing safety when cutting. Package Included: 1 x Straight Collet Chuck More Details: