The Bahco 3830-29-4P Hole Saw Set is a professional-grade saw designed to cut aluminum, wood, metal, brass, steel, and cast iron materials. This hole saw has a 29mm (1-1/8”) diameter, and is equipped with durable, cost-efficient blades for long tool life and cutting accuracy. With this saw, you will have the ease of cutting clean, accurate holes and minimizing debris. Its design also allows for easy removal of stuck pieces from the saw, for minimal downtime.