Sterling Silver Crimp Cover 3mm Brushed Satin. A variation on the normal crimp cover having a satin or sand balsted finish. Use to cover crimp tubes to give that finished look. Place the cover over the crimped tube and gently close with the rounder part of crimping plier jaws to make a 3mm dia bead when finished. Can be used with 1x2mm and 2x2mm crimp tubes, hole size is approx 1-2mm. Sold by the ten, order 1 for 10, 2 for 20 etc.