My hole is too small

OldGuyNewJeep

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I discovered, tonight, that my new house (built in ‘83) has 1 5/8” doorknob holes. I never knew there was such a thing. What a PITA.

Anyway, I just ordered an “oops arbor” to (hopefully) make enlarging the holes to 2 1/8” dummy proof (I’m the dummy who will be taking a hole saw to my doors so we can have pretty matte black knobs).

Has anyone done this job, before? Any pointers?

I was going to just make a jig out of 3/4” plywood and clamp it on each door to guide the hole saw, but this “oops arbor” thing looks better.

 
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OldGuyNewJeep

OldGuyNewJeep

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Alright, no one replied so nobody cares... nonetheless, here’s my update. Maybe Google will bring some home repair DIY guy here and he’ll decide he needs an oops arbor and a Wrangler. :rock:

In a nutshell, this tool is ingenious. It was DEAD SIMPLE to enlarge a 1 5/8” doorknob hole to 2 1/8”. (You can do any size holes you want, those are just what I needed.)

10/10 recommend this thing (along with a good quick release mandrel).

https://www.amazon.com/dp/B00004RGZQ

http://www.starrett.com/metrology/product-detail/KA19-N

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