The 79mm Draper Expert Cobalt Hole Saw is ideal for larger commercial installations, substantial waste systems and industrial ventilation ducting. This size accommodates 75mm and adjacent fittings. With 8% cobalt content for superior durability, this hole saw efficiently cuts through steel, brass, bronze, cast iron, aluminium, wood and plastics to a maximum depth of 35mm. Features and Benefits: • 79mm diameter perfect for larger commercial work • Quality steel with 8% cobalt content fo
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