The DeWalt Extreme Bi-Metal Hole Saw in 29mm is suited to conduit entries, small pipework penetrations, and cable access holes through wood, metal, and plastic. A useful size for electricians and plumbers requiring accuracy on close-tolerance applications. Features and Benefits: • Patented tooth forms optimise chip removal for long tool life • Large continuous slot for fast, easy plug ejection • HSS cutting edge cuts wood, metal, and plastic • Deeper design cuts thick materials in one pass • Up to twice the lifetime of the previous generation