uxcell 13mm Hole Metal Collet Nut for Makita 3612 Engraving Machine Product Name : Collet Nut;Model : for Makita 3612 Engraving Machine Hole Diameter : 13mm/ 0.51";Overall Size(Approx.) : 27 x 23mm/ 1.06" x 0.9" (D*L) Material : Metal;Color : Black Weight : 50g Package : 1 x Collet Nut