“Durable and easy to use; no electricity required! It is ideal for cold connections and creating jewelry components. It will Punch through metals up to 16 gauge in thickness. Hardened dies and punches create seven different hole sizes: 2.38, 3.18, 3.97, 4.76, 5.56, 6.35, and 7.14 millimeters (3/32, 1/8, 5/32, 3/16, 7/32, 1/4, 9/32 inch). Dies, punches, and storage slots are all marked with size for accuracy. Adjustable throat with depth gauge adjusts to depths from 1/4 inch to 1-1/2 inches from the edge. Sturdy plastic storage case with handle.”