A: Materials: The type of fabric you will be reducing will ascertain the sort of hole observed you need. As an example, Should you be slicing Wooden, you may need a bi-metal hole noticed. Should you be chopping metallic, you will require a tungsten carbide hole observed. Size: Hole saws https://wholesaleholesaws04715.frewwebs.com/35960108/hss-hole-saw-for-dummies