uxcell Clamping Range 6.5mm ER11 Precision Spring Collet Reaming Part Product Name : Spring Collet;Model No. : ER11 Clamping Diameter : 6.5mm/ 0.26";Overall Size : 12 x 18mm/ 0.4" x 0.7"(Dia*Length) Material : Stainless Steel;Color : Silver Tone Net Weight : 6g Package Content : 1 x Spring Collet