A: Content: The kind of fabric you're going to be chopping will identify the sort of hole saw you'll need. For instance, In case you are slicing Wooden, you will require a bi-steel hole noticed. For anyone who is chopping metallic, you may need a tungsten carbide hole observed. Sizing: https://garrettheytm.ageeksblog.com/34267675/what-does-hss-hole-saw-mean