Screwdriver Slim-Line Long Miniature with 3 Medium Blades - Made in USA By Commando Products (NEW 2015) Attractive 5/16 diameter Clear Anodized aluminum body Slim-Line Pen 4.40 long with pocket clip Special built-in chuck firmly holds screwdriver blades 3 Precision Heat Treated alloy steel blades(.070, .100 flat & #00 phillips) store inside handle All parts, including blades, Made in USA