uxcell 9mm -10mm Clamp Spring Collet Grinding Milling Lathe Tool ER32 Product Name : Spring Collet;Model No. : ER32 Clamping Range : 9-10mm;Clamping Hole Diameter : 10mm / 0.39" Overall Size : 40 x 32mm / 1.57" x 1.26" (H*D);Material : Stainless Steel Color : Gray, Silver Tone;Net Weight : 140g Package Content : 1 x Spring Collet