Irwin Bi-Metal High Speed Hole Saw 102mm

Professional Irwin 10504204 bi-metal hole saw with WELDTEC™ technology for enhanced durability and cutting speed. Cuts aluminium, copper, iron, stainless steel, wood, and zinc with precision.

• Diameter: 102mm (4 inches)
• Depth: 45mm cutting depth
• Construction: Bi-metal with HSS edge
• TPI: Variable 4.5/5.5 teeth per inch
• Technology: Electron beam welded teeth
• Performance: 50% faster cutting