inside diameter of a hole saw

[jannan]

I need an exact 4 1/4 plug for a project. The way the saws are packaged it is hard to get an exact inside measurement, and at $35 a pop, I hate to guess. Anybody know if I need a 4 3/8" or 4 1/2" saw. Thanks!!

 

[ishiboo]

They're probably just under 1/8" thick with the teeth. The actual wall thickness is much less. I would go with a 4.5" and plan on sanding it.

 

[Slowgsr]

You should find somewhere that sells a kit so you can handle them and measure.

 

[Voi]

I need an exact 4 1/4 plug for a project. The way the saws are packaged it is hard to get an exact inside measurement, and at $35 a pop, I hate to guess. Anybody know if I need a 4 3/8" or 4 1/2" saw. Thanks!!

Not sure but something like this might work?

http://www.rockler.com/heavy-duty-c...PL&sid=V9146&gclid=CKLgjKvzp8oCFY-PHwodw0wNbA

 

[jannan]

The circle cutter won't work as I'll be using it in a hand held drill. Thanks for the post though.

 

[Slednut]

If you know someone with a bandsaw they will cut circles really nice. Here's a vid.

 

[PassnThru]

It's sort of a moot point unless every manufacturer uses the exact same wall thickness and tooth offset.

 

[jannan]

If you know someone with a bandsaw they will cut circles really nice. Here's a vid.

Thanks for that suggestion, I loaned my band saw to my brother awhile back and didn't even think about it.

 

[ez-duzit]

A hole saw is simply the wrong tool for this job.

Scribe a line to the diameter you need and sand to the line on a disc sander.

 

[jannan]

Thanks for all the replies, all were helpful. Will be using the band saw and sander. Best of all I saved $30 bucks.

 

[Milton Shaw]

Turn a log on a lathe and then saw off the number of plugs you need would be another choice for this.

 

[dfiler2]

It's easy to cut a perfect circle with a table saw, after finding this i made a jig, it works great.

http://www.instructables.com/id/Make-a-perfect-circle-WITH-A-TABLE-SAW/

 

[matt_i]

Wood lathe would be my choice of tools to hit a specific diameter and retain maximum roundness.