Irwin Bi Metal High Speed Hole Saw – 10504170

The 27mm IRWIN Bi-Metal High Speed Hole Saw is particularly useful for larger electrical installations and plumbing work where additional clearance is required. This size is frequently specified for installing larger back boxes, cable entry grommets and medium-bore pipework, making it essential for comprehensive trade toolkits. Engineered with professional-grade bi-metal construction and electron beam welded teeth, this 27mm holesaw provides consistent cutting performance across multiple materials. The sharp, variable tooth design (4-6 pitch) delivers efficient material removal with reduced vibration, producing clean holes in everything from aluminium to zinc. Features and Benefits: • 27mm diameter suits larger boxes and cable entry points • Bi-metal construction for superior blade longevity • Variable tooth pitch (4-6) provides fast, controlled cutting • Electron beam welded teeth maintain sharpness • Cuts aluminium, copper, iron, stainless steel, wood and zinc • Professional quality for demanding applications Specifications: Size (mm): 27 Material: Bi-Metal Pitch: Variable Diameter: 27mm