The crossword solution for the term 'THEY'RE AT YOUR FINGERTIPS' is 'NAILS'. Nails are small, thin pieces of metal that are used to fasten objects together. They are typically made of steel and come in a variety of shapes and sizes. They are commonly used in construction, carpentry, and other DIY projects. Nails are also used in jewelry making and other crafts. They are easy to use and can be found at most hardware stores.