This hole saw by Century Drill & Tool is offered in a 4-1/2-in size.
Shark Tooth Bi-Metal Hole Saw
- Professional Bi-Metal saws with high speed steel teeth, electron welded to a shatterproof, shock absorbing alloy body
- Variable pitch tooth pattern cuts clean through ferrous and non-ferrous metals, wood and plastic
- Can be used in portable electric drill machines, lathes, and milling machines