uxcell Clamping Range 13-12mm ER25 Precision Spring Collet Tapping Part Product Name : Spring Collet;Model No. : ER25 Clamping Range : 13-12mm/ 0.51"-0.47";Clamping Diameter : 13mm/ 0.51" Overall Size : 26 x 35mm/1" x 1.4"(Dia*Length);Material : Stainless Steel Color : Silver Tone;Net Weight : 61g Package Content : 1 x Spring Collet