Punches 2-5/8-Inch (66.7 mm) Diameter hole in metal studs for professional-looking installation of 2-Inch water, vent, waste pipes | Two-speed lever action for fast, easy punching of 24 to 20 gauge thick metal studs | 2-1/8-Inch (54 mm) throat width fits over most studs and channels | High strength alloy aluminum c-frame and handle provides lightweight tool for easy handling 10.6 pounds | Lever action punch retraction strips punch out of metal stud fast and easyAmazon.ca Product DescriptionPunches 2-5/8-Inch (66.7 mm) Diameter hole in metal studs for professional-looking installation of 2-Inch water, vent, waste pipes. Two-speed lever action for fast, easy punching of 24 to 20 gauge thick metal studs. 2-1/8-Inch (54 mm) throat width fits over most studs and channels. High strength alloy aluminum c-frame and handle provides lightweight tool for easy handling-10.6-Pound. (4.8 kg). Lever action punch retraction strips punch out of metal stud fast and easy.From the ManufacturerPunches 2-5/8-Inch (66.7 mm) Diameter hole in metal studs for professional-looking installation of 2-Inch water, vent, waste pipes. Two-speed lever action for fast, easy punching of 24 to 20 gauge thick metal studs. 2-1/8-Inch (54 mm) throat width fits over most studs and channels. High strength alloy aluminum c-frame and handle provides lightweight tool for easy handling-10.6-Pound. (4.8 kg). Lever action punch retraction strips punch out of metal stud fast and easy.