best hole saw for cast iron
The constant annoyance of struggling with dull hole saws on cast iron is finally addressed by the Mollom 2-1/8″ Heavy Duty Carbide Hole Saw with Pilot Bits. After hands-on testing, I can say it’s a game-changer for heavy-duty metal work. The 11 tungsten carbide teeth cut faster and stay sharper much longer than standard bi-metal … Read more