The 54mm irwin bi metal high speed hole saw is an excellent size for larger ventilation installations, substantial drainage work and installing oversized electrical components. This diameter is particularly useful in commercial and industrial settings where larger service penetrations are required through structural elements. Engineered with professional grade bi metal construction and electron beam welded teeth, this 54mm holesaw delivers consistent cutting performance across multiple materials. The variable tooth design 4 6 pitch provides faster cutting action with minimal vibration, ensuring accuracy when drilling through demanding substrates. Features and benefits bull 54mm diameter ideal for commercial ventilation and drainage bull bi metal construction for exceptional durability bull variable tooth pitch ensures efficient material removal bull electron beam welded teeth maintain cutting performance bull compatible with aluminium, copper, iron, stainless steel, wood and zinc bull professional grade quality for industrial use specifications size mm 54 material bi metal pitch variable