uxcell 6mm Gear Diameter 11 Teeth Pilot Type T Shaped Spanner Drill Chuck Key Tool Black Item Name : Chuck Key;Pilot Diameter : 6mm/15/64" Gear Dia : 6mm /15/64";Teeth Number : 11 Overall Size : 6 x 3.5cm/ 2.4" x 1.3" (L*W);Color : Black Material : Metal;Weight : 24g Package Content : 1 x Chuck Key