A: It's important to use the right tool and the right crimps. We recommend the sterling silver and the gold-filled crimp tubes for the best results. You can use a flat-nose pliers to squeeze your crimp tubes, but a specialized bead crimping tool is the best to use. Remember, it is not necessary to squeeze too hard on the crimp tube when attaching it to the wire. The crimp tube is secured when there is no space between the wire and the inside of the tube. Squeezing too hard weakens the crimp. You can find more detailed information on crimping and the use of tools on the back of the package of our tools. Find them in our Tools and Supplies section of our web site.