![Bimetallic crowns ring saws on wood, drywall, plastic and metal](https://repairsl.metaldetectorsforgold.net/wp-content/uploads/2021/12/ybrjef7tmt-1-150x150.jpg)
Buy bimetallic crowns of large diameter and height. Since their inception, bimetallic crowns have become widespread and popular. Special nozzles for the punch and drills vary in diameter and quality of the steel used. They are installed on a perforator and are used to create holes of various diameters when installing communications and performing construction […]