Description of Milwaukee 49 56 0163 4 Inch Hardened Hole: Unbeatable Performance and Durability
The product is easy to use. The product is durable. The product is manufactured in United States. ICE HARDENED for up to 50% longer life than the competition. Matrix II Bi-Metal Teeth for greater durability. Positive Rake Angle for fast cutting. Radiused Tooth Back reduces stress on teeth. Deeper Gullets for fast chip removal and Funtional Slot Geometry provides easy plug removal.
I have a full set of these but needed one this size for a specific project. This one worked just as well as the others I've used, the trick is to work it low and slow like you would any other hole saw.
They are very easy to use and have made my toy collecting time so much easier. Throw them in and spin the wheels, wings, any circle you need to create the play world of our grandkids' fantasies. I can also take other sizes if needed.
These bi-metal hole saws are of very good quality. I couldn't get the sizes I needed in any of their kits (plumbing, electrical) so I bought the exact sizes I needed for this project. Maybe in the future I'll buy a set just to have others and a case to keep them all. No worse than the Lenox brand or any other manufacturer.
Pros
ICE-HARDENED Up to 50% longer service life than the competition