This is a great hole saw for an electrician as they don't need to carry a drill to have a real hole saw. The set screw cuts into a second hole and the chuck rotates freely. So if you don't have access to a welder to weld a chuck to a real hole saw, save your money. When soldered together they become absolutely cool. I can keep all 3 in my tool belt and just carry your punch. Would recommend if you know how to weld.
πͺ Bi-Metal Cutting Blades: Imachinist S933414 - Enhancing Precision and Performance
10 Review
πͺ Durable DEWALT DW3986C Portable Blade 3 Pack for Efficient Cutting
10 Review
πͺ DEWALT DW3984C Portable Blade Set of 3-Pack
10 Review
High-Performance Bosch BS80 6W Bandsaw - 80 Inch 4 Inch Blades
11 Review