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Anyone Using a 14 Degree Bit in your P.C. 4210 / 4212 Dovetail Jig?

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Forum topic by pintodeluxe posted 07-13-2012 06:14 PM 3053 views 2 times favorited 12 replies Add to Favorites Watch
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pintodeluxe

3463 posts in 1508 days


07-13-2012 06:14 PM

Topic tags/keywords: porter cable dove tail dovetail bit router jig 4200 4210 4212 4216 porter-cable portercable

I was reading the supplementary instruction manual for the Porter Cable 4200 series dovetail jig, and apparently you can use different bits. The jig comes with a 13/32” 7 degree bit, that produces a 3/8” depth of cut. This bit works well and makes strong, tight fitting dovetails. However the angles are so shallow, they almost look like box joints.
According to the manual, a 5/8” diameter bit with a 14 degree angle and a 9/16” depth of cut is also compatable with the 4200 series jigs for cutting half-blind dovetails.
Rockler lists part number 91089 which is a 5/8”, 14 degree, and 5/8” maximum depth of cut.
Anyone had any success with different dovetail bits used with P.C. jigs?

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


12 replies so far

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pintodeluxe

3463 posts in 1508 days


#1 posted 07-13-2012 07:17 PM

A link to the supplemental manual…
http://www.rockler.com/tech/RTD10000211AA.pdf

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

View tenontim's profile

tenontim

2131 posts in 2439 days


#2 posted 07-13-2012 07:35 PM

I couldn’t get the manual to load, but normally, the shallower angle is used for hardwood dovetails and the steeper angle for softwood. That’s the rule of thumb I use for hand cutting dovetails.

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pintodeluxe

3463 posts in 1508 days


#3 posted 07-13-2012 08:58 PM

I prefer the steeper angle for aesthetic reasons.
Maybe I’ll try the Rockler bit to see if that works. The thing is, there is only one depth that works for each bit (when cutting half-blind dovetails). The supplementary manual has a nice chart to help you pick the right bit specs.

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

View RiverWood's profile

RiverWood

115 posts in 1455 days


#4 posted 07-13-2012 09:06 PM

I have not tried it, yet, but thanks for the best information I have seen on the PC jig

-- My favorite projects were firewood bound

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pintodeluxe

3463 posts in 1508 days


#5 posted 07-13-2012 09:17 PM

I ordered the Rockler #91089 bit. I will let you know if it works.

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

View NiteWalker's profile

NiteWalker

2710 posts in 1272 days


#6 posted 07-13-2012 11:21 PM

Thanks for the heads up.
I’ll be watching with interest.

I put one of the bits you mentioned in my cart and I’ll grab it if everything turns out ok.

-- He who dies with the most tools... dies with the emptiest wallet.

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pintodeluxe

3463 posts in 1508 days


#7 posted 07-25-2012 04:23 AM


Link to further info…
http://lumberjocks.com/topics/40073

The Rockler 91089 worked well. It is a 14 degree dovetail bit 5/8” wide, with a 5/8” depth of cut.
I set the bit to cut slightly less than 5/8”, and the fit was good. Pictures show the 14 degree bit vs. the standard 7 degree bit that comes with the 4210 / 4212 jig.

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

View ajosephg's profile

ajosephg

1854 posts in 2256 days


#8 posted 07-25-2012 12:58 PM

Thanks for the info. I think the 14 degree does look better.

-- Joe

View Bill White's profile

Bill White

3507 posts in 2655 days


#9 posted 07-25-2012 02:49 PM

Now this kind of info is what ‘Jocks is all about. Thanks for the tip.
Bill

-- bill@magraphics.us

View toolmantim's profile

toolmantim

22 posts in 718 days


#10 posted 12-27-2012 03:46 AM

I made this jig one of my early Christmas presents and at the moment attempting to modify the Rockler dust collection hood to it. Nothing replaces the look of a well made home shop built dovetail joint on a project. Its one of the things people see when checking out our handy work.

-- " My favorite Place in Life, The Shop "

View bandit571's profile

bandit571

7173 posts in 1378 days


#11 posted 12-27-2012 04:05 AM

This is the supplied bit. I just slapped something together, just to try out a new router to see how it worked with the jig…

needs a bit more fine tuning, though. That old barn wood don’t like router bits…

-- A Planer? I'M the planer, this is what I use

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NiteWalker

2710 posts in 1272 days


#12 posted 12-27-2012 07:26 AM

Just another heads up; I went to grab the rockler bit and it’s on backorder until march 2013.
Lee valley has the same bit (item #16J17.55) and it’s cheaper. Pair that with free shipping over $40 until 1/7 and we have a winner. :)

Edit to add:
MLCS has the same bit as well (item # 7699) even cheaper than the lee valley bit. Not bad if you’re just testing the waters.

-- He who dies with the most tools... dies with the emptiest wallet.

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