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For heavy-duty metal applications, Bi-Metal hole saws with 8% Cobalt alloy provide superior heat resistance and durability compared to standard carbon steel. These professional-grade cutters ensure clean openings in stainless steel and cast iron, and you can find the right diameter for your project at techstores.gr.

Tungsten Carbide Tipped (TCT) hole saws are essential for abrasive materials like brick, tiles, and aerated concrete where standard blades would dull instantly. While Bi-Metal is versatile for wood and thin metal, the TCT design offers the necessary hardness for construction masonry tasks available at techstores.gr.

To achieve splinter-free results in wood and PVC, look for a hole saw with a variable tooth pitch (4/6 TPI) which reduces vibration and clears sawdust efficiently. This geometry prevents overheating and ensures a smooth finish on every diameter you select from techstores.gr.

Most professional hole saws utilize standard hex or SDS-plus arbors that feature a quick-release locking pin system to prevent the saw from tightening during high-torque use. Choosing a compatible heavy-duty mandrel ensures stability and safety for all your drilling operations at techstores.gr.