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Leigh D4 Dovetail Jig Bit Question

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Forum topic by rswan12 posted 02-22-2021 02:36 PM 285 views 0 times favorited 7 replies Add to Favorites Watch
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rswan12

2 posts in 58 days


02-22-2021 02:36 PM

Topic tags/keywords: leigh d4 dovetail jig router half-blind cutter tool

I have a Leigh D4 24” dovetail jig and am wondering what bits I can use. The manual is great and has charts showing exactly what Leigh bit should be used for different joints, material thicknesses, etc. Can I only use Leigh bits with the exact dimensions and angles, or can I use off-brand stuff.

For example, for half-blind dovetails in 3/4” material, it specs cutter no. 101 (1/2 diameter, 5/8” cutting depth, 10 deg). Could I use some other bit of 5/8” cutting depth and have it still work?


7 replies so far

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Rich

6779 posts in 1645 days


#1 posted 02-22-2021 03:27 PM

Any bit with the proper profile will work. The Leigh bits are excellent quality, and one plus is that you get an option for 8mm shanks, which are sturdier than the 1/4”.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

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Foghorn

1149 posts in 442 days


#2 posted 02-22-2021 04:32 PM

LeeValley sells off brand bits for the jig as well including 8mm shanks.

-- Darrel

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Fred Hargis

6926 posts in 3549 days


#3 posted 02-22-2021 04:50 PM

I’m not even sure I have any Leigh bits. I’ve used Freud, CMT, and Jesada with mine and all have worked fine.

-- Our village hasn't lost it's idiot, he was elected to congress.

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splintergroup

4987 posts in 2278 days


#4 posted 02-22-2021 05:12 PM

Rumor has it Whiteside makes many of the Leigh bits, but either way the Leigh bits are quality.

I use a mix of brands, as long as the length/angle are proper you are good (I’ll admit that it can be tricky to find some off-brand versions of those smaller bits)

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rswan12

2 posts in 58 days


#5 posted 02-22-2021 05:50 PM

Yea there are some funky sizes. Especially for half blind. And many of them are out of stock…

Is the 8 in the cutter number referring to 8mm? I know there are No. 80 and No. 80-8.

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Rich

6779 posts in 1645 days


#6 posted 02-22-2021 05:54 PM


Is the 8 in the cutter number referring to 8mm? I know there are No. 80 and No. 80-8.

- rswan12

Yep.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

View BurlyBob's profile

BurlyBob

8730 posts in 3321 days


#7 posted 02-23-2021 03:55 AM

I’d definitely go with Whiteside bits. I’m pretty sure they’ve set just for Leigh jigs. They are my favorite bits out there. I don’t buy anything else.

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