uxcell Gold Tone Brass 3.17mm 1/8" Motor Shaft Mini Drill Chuck 2.5mm-3.17mm Product Name : Mini Electric Drill Chuck;Model : 3.17-3.17 Material : Brass;Fit Motor Shaft : 3.17mm / 1/8" Fit Drill Bit : 2.5mm-3.17mm;Color : Gold Tone Size : 8 x 27 mm / 0.3" x 1.06" (D*L);Weight : 9g Package : 1 x Mini Electric Drill Chuck