Trend M&T Jig - which router bits??!??

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Forum topic by Crickett posted 09-24-2014 03:15 PM 913 views 0 times favorited 4 replies Add to Favorites Watch
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137 posts in 1450 days

09-24-2014 03:15 PM

I’ve just purchased the Trend M&T router jig to make ease of the many mortise and tenon duties on most of my craftsman inspired furniture builds. I’m waiting however to purchase the long-reach router bits however until I decide whether to buy straight cutting or spiral (upcut or downcut) bits. Whatever I decide, I’ll most certainly only buy Whiteside brand bits. Does anyone know if you get a cleaner cut for your cheaks and shoulders using straight versus spiral bits? Many thanks for quality info….

4 replies so far

View pintodeluxe's profile


5626 posts in 2783 days

#1 posted 09-24-2014 04:26 PM

Not all straight bits allow you to plunge. I have best luck with spiral bits. Upcut spiral bits are best for mortises.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

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601 posts in 2877 days

#2 posted 09-24-2014 05:52 PM

what he said

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137 posts in 1450 days

#3 posted 09-25-2014 05:18 PM

I can’t get flat-bottomed cuts with a spiral bit though can I? And Why does a spiral bit give you a better cut?

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601 posts in 2877 days

#4 posted 09-25-2014 10:09 PM

You asked two questions. Lets do the second one first.

NO ONE on here will argue against spiral up-cut bits getting all the crap out of the mortise simply as it is made to do that. NO clogging, no heating, no crap build-up in mortise, etc. These are not inconsequential issues Particularly if you are doing a run of 12-20 of them.

First…...........not sure why the worry about the bottom of the mortise being perfectly flat. You are going to drill a mortise depth that is a TAD longer than your tenon. Just a tad. And that will fill with glue, so if the tenon is not going to hit the bottom of the mortise, why the concern if it is flat. Note, I said a tad. Not 1/8 “bumps in the bottom of the mortise

But your Trend jig will take care of the bottom of the mortise.

May I show you a set of table legs, rails still, etc already for glue-up.


I use a MortisePal. You use a Trend. Same same.

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