A: Substance: The kind of fabric you can be slicing will figure out the kind of hole saw you may need. One example is, When you are cutting Wooden, you may need a bi-metal hole observed. If you are chopping steel, you'll need a tungsten carbide hole noticed. Dimension: Hole https://holesawsupplier05061.blogdun.com/36152205/5-essential-elements-for-hole-saw-supplier