• Crimps 30 - 24 gauge (0.41 - 0.71 mm) galvanized steel round duct or 0.31 - 0.61 mm cold rolled steel stove pipe
• Simple effective design increases speed and ease of crimping (5X faster than hand crimping)
• No set-up or adjustment is needed to immediately begin crimping multiple sizes, types and thickness of round metal duct, including spiral duct, and metal stove pipe
• Designed to work with a minimum 12 Volt DC cordless or maximum 7 amp AC corded Impact driver equipped with a quick release 1/4 inch hex chuck
• Features durable solid block construction, hardened steel drive shaft and smooth working mechanisms
• Easy to balance while in use and stores easily in a pouch or bag when not in use

Note: This item is for use with Impact Drivers only.