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Self centering bits

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Forum topic by Deadend posted 04-14-2018 12:39 AM 759 views 0 times favorited 14 replies Add to Favorites Watch
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Deadend

17 posts in 629 days


04-14-2018 12:39 AM

I’m looking for self centering bits (1/4” and 5mm). Just plain old self centering bits to drill holes for shelf pins. Nothing fancy or real expensive.
Can some one direct me to a simple place to buy these. Rockler and Amazon have left me confused. Maybe I don’t understand the size numbers #4 #6 #8 etc)
Thank you for your time.

-- I might not do good work, but I'm slow.


14 replies so far

View AlaskaGuy's profile

AlaskaGuy

5313 posts in 2725 days


#1 posted 04-14-2018 12:51 AM

How do you intend to guide these bit once you get them. I assume some kind of a template. The template could have a bearing on which bit s you use.

-- Alaskan's for Global warming!

View CaptainKlutz's profile

CaptainKlutz

1489 posts in 1910 days


#2 posted 04-14-2018 01:04 AM

hmm, I am confused as well:

Do you want ‘Vix’, ‘Snappy’, or insty bits for drilling pilot holes for #4, #6, or #8 screws used in (hinge) hardware
or
self centering bits intended to be used with shelf pin drill jig ?

Either one requires use of a template to guide the self centering drill bit, as AlaskGuy mentioned.

FWIW Kreg sells a shelf pin drill guide that does not need self centering drill bits?

-- I'm an engineer not a woodworker, but I can randomly find useful tools and furniture inside a pile of lumber!

View Deadend's profile

Deadend

17 posts in 629 days


#3 posted 04-14-2018 01:05 AM

I plan to use a perforated steel strap. Seemed adequate on the video I watched. I’ve been doing them with a brad point bit and drill press without a guide. Self centering bits and a guide seems to be easier and quicker.

-- I might not do good work, but I'm slow.

View AlaskaGuy's profile

AlaskaGuy

5313 posts in 2725 days


#4 posted 04-14-2018 01:27 AM


I plan to use a perforated steel strap. Seemed adequate on the video I watched. I ve been doing them with a brad point bit and drill press without a guide. Self centering bits and a guide seems to be easier and quicker.

- Deadend

I have never seen the perforated steel strap method. Could you post a link to that video?

Do you drill a lot of shelf pin holes?

-- Alaskan's for Global warming!

View waho6o9's profile

waho6o9

8670 posts in 2993 days


#5 posted 04-14-2018 01:48 AM

View Deadend's profile

Deadend

17 posts in 629 days


#6 posted 04-14-2018 01:51 AM

View AlaskaGuy's profile

AlaskaGuy

5313 posts in 2725 days


#7 posted 04-14-2018 02:37 AM

In my opinion this is the fastest , most efficient and clean chip free hole your going to get in the small shop. This is basically what I did/do. Does a fantastic job on melamine.

https://youtu.be/VePqUY3cf5k

I use the small Dewalt router with the plunge base (works like a charm). I bought both 1/4 and 5MM bits with 1/4 shanks.

-- Alaskan's for Global warming!

View Fred Hargis's profile

Fred Hargis

5581 posts in 2909 days


#8 posted 04-14-2018 10:57 AM

I use Alaska’s guys method and it works well and it’s cheap to make the MDF guide.

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

View Deadend's profile

Deadend

17 posts in 629 days


#9 posted 04-14-2018 01:58 PM

I’ve got scrap pegboard and the same Dewalt router. With the spiral bits and the guide I could give that a try.
Thanks for all the info. Gives me many options and a lots more info. I ‘m sure any combination of these will work.


-- I might not do good work, but I'm slow.

View AlaskaGuy's profile

AlaskaGuy

5313 posts in 2725 days


#10 posted 04-14-2018 04:09 PM

Just a side note about router bits. When I first made my shelf pin drilling jig I didn’t have a down cut spiral bit on hand. Being anxious to try out the jig I chucked up a 1/4×1/4 2 flute straight bit and gave it a try. I got perfect chip free holes in plywood, in prefinished and even in melamine. I’m still using a1/4×1/4 2 flute straight bit I see no must have reason to change.

-- Alaskan's for Global warming!

View bandit571's profile

bandit571

23150 posts in 3099 days


#11 posted 04-14-2018 04:27 PM

Looks almost like the one Norm Abram made….

I used to use a strip of pegboard…..

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

View Deadend's profile

Deadend

17 posts in 629 days


#12 posted 04-14-2018 05:06 PM

Thanks for the heads up on the flute bit AG. I likes saving dollars.

-- I might not do good work, but I'm slow.

View EarlS's profile

EarlS

2868 posts in 2764 days


#13 posted 04-14-2018 05:09 PM

I use the Rockler shelf pin jig and associated self-centering drill bit when making hols for shelf pins. You can order a bit that is sized a bit larger if you intend to use grommets in the holes or the regular size that corresponds to the diameter of the pin (inches, or mm). It’s a lot faster than setting up a router with a guide bushing and using a shop made template. I use the original jig to make a working copy of the jig so the original never gets banged up.

-- Earl "I'm a pessamist - generally that increases the chance that things will turn out better than expected"

View AlaskaGuy's profile

AlaskaGuy

5313 posts in 2725 days


#14 posted 04-14-2018 05:49 PM


I used the Rockler shelf pin jig and associated self-centering drill bit when making hols for shelf pins. You can order a bit that is sized a bit larger if you intend to use grommets in the holes or the regular size that corresponds to the diameter of the pin (inches, or mm). It s a lot faster than setting up a router with a guide bushing and using a shop made template. I use the original jig to make a working copy of the jig so the original never gets banged up.

- EarlS

I used one of the Rockler set ups for years (before I finally made my jig) because that’s what my work place provide us. With Rockler bits I’d tear out on the holes, especially on melamine. Tear out or chips on melamine are plain old ugly looking. The router does such a prefect job it worth the setup time.

That being said I only set it up one time. That router is dedicated to doing that one job. If you look at the “http://lumberjocks.com/topics/270825” thread you see most people have multiple routers and often is so you don’t have to setup every time you do a particular job. If you a hobbyist who dose shelf pin holes infrequently how much time does it take to change a router bit.

In my opinion the router setup is much better why to go.

-- Alaskan's for Global warming!

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