uxcell C10 ER11A 100L Collet Chuck Holder Straight CNC Milling Extension Rod Product Name : Straight Collet Chuck;Model : C10-ER11A-100L;Fit for : ER11 Collet Material : Metal;Color : Silver Tone , Black;Shank Dia : 10mm/ 0.4" Shank Hole Inner Dia : 5.5mm/ 0.22";Shank Length : 100mm/ 4";Total Length : 125mm/5" End Thread Hole Dia : 8.7mm/ 0.34";Overall Size : 125 x 19mm / 5" x 0.75" (L*Max.D) Net Weight : 83g;Package Content : 1 x Straight Collet Chuck