Router bit question

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Old 12-27-08, 09:25 AM
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Router bit question

I'm going to be making some bookshelves, using dados. Looks like I'm going to have to spring for a 23/32 or 11/16 bit.

Is there any functional difference between a "mortising" vs a "straight" bit?
 
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Old 12-27-08, 01:32 PM
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Why not use a 3/4" stacked dado blade in your table saw? You won't want to crowd the shelved into a too small dado. The wood will swell and contract. As far as a router bit goes, use a full 3/4 ( or 25/32) straight bit. A mortising bit is used to cut deep square holes in the edge of wood using a drill press with a mortising attachment.
 
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Old 12-27-08, 02:09 PM
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Thanks, Chandler. Once you said "drill press". the 'duh" sign came over my head.

Don't want to use my table saw because I'll be cutting the width of 8' x 1' boards. The setup on 10 of those puppies would, I think, be a pain. So I figure I'll make a jig that will provide conistancy for the dados on each horizontal.

My first time doing this. last time, I just used L-brackets for each shelve....

Newbie
 
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Old 12-28-08, 12:33 PM
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You are absolutely right on using the router in that instance. I have used my radial arm with the stacked dado blades for the grooves, but with a good straight edge, the router may work just fine. Clamp the board securely. Good luck with the shelving.
 
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Old 12-28-08, 01:07 PM
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And btw...they do have mortice bits for routers..just by looking at it, maybe there's a bigger gap between the flutes for chips...otherwise they look like straight bits to me, but I'm no Norm. In this case pictures DO NOT tell a thousand words.

Chandler, I'm really not following you around and disagreeing...lol
 
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