Help Identifying Router Bit

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Forum topic by DanceParty posted 02-02-2012 04:50 PM 7529 views 0 times favorited 12 replies Add to Favorites Watch
View DanceParty's profile


59 posts in 3496 days

02-02-2012 04:50 PM

Hey guys!

I was hoping someone knew what brand and a place where I could purchase this router template bit (one on the left). I’ve searched all major manufacturers that I know of to no avail. It’s massive! I know someone here can help.

12 replies so far

View Grandpa's profile


3263 posts in 3649 days

#1 posted 02-02-2012 05:00 PM

I have never seen on like that. That doesn’t mean you can’t buy one on every corner but I have never seen one like it. Are you sure someone didn’t make that tool. It looks like and end mill that has had some work done on it. I imagine it is aggressive too.

View roscoe378's profile


4 posts in 3311 days

#2 posted 02-02-2012 05:08 PM

I am with Grandpa on this one. I would send an E Mail to Whiteside with a photo and if anyone can help they should have an answer. My best bet is an end mill that someone converted.


View mtenterprises's profile


933 posts in 3667 days

#3 posted 02-02-2012 05:11 PM

Thats an end mill with a bearing slipped onto the shaft.

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View Peter Oxley's profile

Peter Oxley

1426 posts in 4848 days

#4 posted 02-02-2012 05:14 PM

Try a google image search for a “shell end mill”.

-- -- --

View gfadvm's profile


14940 posts in 3664 days

#5 posted 02-03-2012 04:44 AM

Looks like and end mill with a bearing as stated above. Wholesale Tools has a big selection of end mills in the inexpensive category.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

View William's profile


9950 posts in 3816 days

#6 posted 02-03-2012 05:07 AM

I’ve seen his before.
It is a spiral upcut end mill template bit.
From my understanding, it is made for using a template pattern to cut patterns to a certain depth. The spiral pattern quickly brings the material up, out of the cut, to help prevent burning.
The article I read about them hinted that they were popular in home made router based CNC machines.

I am looking diligently for the supplier, since I seen it before. If I find it, I will report back.


View Joao Araujo's profile

Joao Araujo

25 posts in 3808 days

#7 posted 02-03-2012 05:43 AM


The Wood Whisperer used that kind of bit in one of his videos. about the 35 mins mark he talks about the bit.

I found a site that sells it:

Take care,

Joao Araujo

View William's profile


9950 posts in 3816 days

#8 posted 02-03-2012 06:12 AM

I am so glad you found that. I can quit looking now.
I’ve been searching like crazy for it. After seeing the video you linked, it made me more curious.


View Sawkerf's profile


1730 posts in 4042 days

#9 posted 02-03-2012 06:26 AM

That looks like an end mill. I’ve only seen them used in machine shops. They usually do the same thing as a planer.

-- Adversity doesn't build reveals it.

View DanceParty's profile


59 posts in 3496 days

#10 posted 02-03-2012 05:28 PM

Yea, after doing some research I think its based off a END MILL design, but used for wood. Found out its called the Big Daddy Pattern Bit and is sold by William NG Woodworks. Probably marketing it as a bit for thicker hardwoods in a router table, I’ve seen some shelix heads being used on a shaper, maybe grizzly brand?

Anyways the guy that posted the picture on his blog got back to me and told me what it was, I believe he was using it to template maloof chair legs, which are pretty thick stuff. If I remember correctly, Maloof said when he used templates he used a shaper to mill his parts off the templates… guess this bit is trying to have the same capability but on a router..

I was interested in it because of the blade design. I have to template some walnut endgrain on my router table and thought that the shearing cutting action of the bit might leave a smoother surface with less tear out, kinda like a shelix cutter head. Plus, it goes into the omg this thing is cool category I have to have it, but I think Im going to stick with my normal template bit for now considering the need verse cost of this bit.

View DanceParty's profile


59 posts in 3496 days

#11 posted 02-03-2012 06:07 PM

Whoops didnt see Joao had figured it out. Thanks for pointing out what it was!

View HenryEugen's profile


1 post in 861 days

#12 posted 09-16-2018 10:23 PM

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