Description 1 Mil Copper Foil Sheet (.001" thick) 12 inches wide by 20 feet long 1 Rolled Sheet The 1 mil foil is our thinnest copper foil sheet. At .001" thick, it is approximately 1.5 times thicker than typical household aluminum foil and is easy to cut but also easy to wrinkle. You can tear the 1 mil copper foil sheets with your hands or punch out various shape with paper punchers. The 1 mil is often used in scrapbooking or with other paper crafts and also for electrical, manufacturing and R & D applications. Thank you for shopping at Basic Copper! At Basic Copper, we are dedicated to providing premium copper foil and copper sheets at an unbeatable price for use in arts & crafts, hobbies, home improvement projects, do-it-yourself projects, manufacturing, research & development, electrical applications and more! Our copper is alloy 110 (99.9% pure copper), soft-annealed with a bare commercial finish. We carefully select our copper and package it with care in order to provide you with the best possible product. If you have any questions or would like assistance in choosing the right copper for your project, please send us a message CAUTION: The copper you receive may have sharp edges, please handle with care! NOTE: Our copper is cut generous in length and approximately straight.