... Teeth of our Bi-metal hole saw set refer to the High speed steel of M3,M42 for different ... Tooth;3. Cutting Safely and Efficiently,the Best Way to Cut Large Holes, Clearing the Chips in Touch Materials;4. ... Cutting Depth to 1-1/2"(38mm) and 1-7 ... ,Plywood and Plastics;8. All the specifications for arbored hole saws are the same as hole saws.There is ...