Humidifiers and Dehumidifiers - Installation and debris generation

This is probably a stupid question, but I'll ask anyway. I am going to be installing a bypass humidifier with my highboy-type furnace, with the unit on the return side and the bypass line cut in immediately above the furnace outlet and air conditioner. My question is - do I need to worry about generating metal shavings during installation that drop down into the furnace assembly? It seems that it can't be good to have a lot of debris in there, but I can't figure that it is totally avoidable, either.

Thanks in advance for any help!

Red Wing MN?

When you cut it, you cut out a fairly large pieces of metal, that you can grab on to when you cut.

If you drop something, you can remove the air filter and reach into the return drop from the blower area.

do I need to worry about generating metal shavings during installation that drop down into the furnace assembly?

Just where would you get shavings?????? After you lay out what you have to cut out in the center of it take a screwdriver at a 45o angle on the duct and tap it on the side of the screw driver Make a slice across the duct . Then use a left and right aviation snips to cut it out

I was hoping to do the job w/o buying curved aviation snips. This will probably be the only duct I will ever cut in my life, and I figured I could get by with the pair of straight snips I have along with various other hand held power tools, but I know they will kick some scrap into the ductwork.

As with so many things, it is probably worth just buying the right tool to do it right.

You could use the stright snips, but the cut will be jagged..

Ask friends/family or co-worker to see if they have snips that you can use.

I see you are in Red Wing, I grew up in Lake City, now in Rochester.