The Starrett Fast Cut 70mm bi-metal holesaw is engineered for rapid, smooth cutting through stainless steel, mild steel sheet, and tubes up to 3mm wall thickness. The advanced tooth material and design deliver enhanced heat and wear resistance compared to standard constant-pitch saws, making it ideal for professional metalworking and fabrication tasks. Perfect for electricians, panel builders, and metalworkers who demand precision and speed in repetitive cutting operations.