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Using round-over bits

13433 Views 14 Replies 8 Participants Last post by  Dorisz11
Hi folks--

Have a question for the site. I'm building a deck, and wish to use a round-over bit to trim the outer edge of the fascia board for the edge of the deck. I've purchased a set of Skil roundover bits (1/4, 3/8, & 1/2 inch, with axial bearings). I'm going to wind up with approx. 100 ft of fascia, and would like the final edge to be the 1/2" round.

I was taught that routing is done a bit at a time--I do a lot of dovetail work and Japanese notch construction--but I've never used a roundover bit.

My tendency is--as I'll be using a hand router--to use the 1/4" bit, then the 3/8" bit, and finish with the 1/2" bit.

Thus, the question: Is this the way to approach the problem? Would multiple passes introduce inconsistency in the work, or would it be better to just use a single bit (the 1/2") slowly and carefully? (This is treated lumber.) Either way, I'm going to look like a cinnamon donut when I'm finished.

Any suggestions would be appreciated! Thanks!

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HI Steve - Welcome to the forum:)
Looks like the guys have you fixed up. Just one tip, especially with treated lumber, have some bit cleaner on hand for when you are finished. Your bits will love you for it:D
John-- what type of bit cleaner? I've never used a two part--three, if you include the axial bearing and the allen (hex) nut--router bit before. Are we thinking a nice WD-40 bath (and not a shower?). I have no idea about the care of multiple part bits!

HI Steve - If you get it while it's fresh, most heavy duty household cleaners will work, 409, Fantastic, etc. Several places have their own concoctions for cleaning and soaking badly caked bits and blades. I have stuff from CMT and Rockler. I haven't been giving the bearings any special treatment. Since most of the cleaners are water based I will hit them with a spritz of WD-40 before I put them back to bed though. Good bit care isn't difficult. When I take one out of the router I just squirt it with a bit of cleaner, wipe it off with a towel and check it for damage and such, spritz it with WD-40 and put it back. Only takes a few seconds and they are always ready to go. Usually more ready than I am;)
Hi Steve

I can't think of a quicker way to wipe out a nice router bit than to clean it the wrong way , the bearings are the sealed type but most cleaners (like WD40) will get in the bearing and break down the lube inside of it. you just want to clean the cutters and wipe the dust off the bearing, pick up some bit cleaner it's cheap and worth the money to do it right..a little spray and the pitch will wipe right off..and make it like new again.. :)

Hi Bob, I stand corrected. I read in Bill Hyltons book WoodWorking with the Router to use WD-40 on the bits. I just went back and checked and he did, but I took it totally out of context. He was using it to prevent contact cement buildup on the bearings during a job, not as a routine. Looks like I'm gonna need to change my program some. :blink:
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