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View Full Version : Circle Jig users....... got a question?



Kenneth10483
07-30-2009, 06:18 PM
Whats the best bit to use to cut the circles 1/4 straight bit? any brand that last longer?

da box king
07-30-2009, 06:18 PM
1/4" spiral upcut...and dont be cheap on it

jdawg
07-30-2009, 06:20 PM
1/4 straight is what the jasper jig is made for, it depends on your jig, the instructions should say, if you dont use the one that the jig is meant for your circles will be too big or too small.
My craftsman came with a bit, I have been using that one.

Chevyaudio
07-30-2009, 06:21 PM
either a 1/4" Straight or Spiral upcut bit. The upcut bit will cut smoother, but a 1/4" straight will do fine.

dappa5
07-30-2009, 08:26 PM
use the up cut the straight is just barely enuff cutting surface for 3/4
causes heat and sometimes breakage

boomintahoe
07-30-2009, 08:30 PM
I have those same jasper circle jigs myself. Best bet is use a 1/4" straight bit like others have mentioned and if you can spare the extra dough, buy a carbide bit....lasts longer.

Jared530
07-30-2009, 08:31 PM
Ive been looking all over for a circle jig (homedepot, orchard, lowes, sears) no on carries them. Do you have to order one?

dappa5
07-30-2009, 08:36 PM
yes google jasper circle jig model 200

roarzorz
07-30-2009, 08:47 PM
A regular straight cut bit won't last long. Get the upspiral bit. They cut much better than a plain straight cut. As long as it's a 1/4" bit it'll work with the jig just fine.

dappa5
07-30-2009, 09:59 PM
i use the 3/8" just have to factor that into pin placements

Chevyaudio
07-30-2009, 10:03 PM
use the up cut the straight is just barely enuff cutting surface for 3/4
causes heat and sometimes breakage

no one ever said you had to cut the circle in one pass...I usually make 3 passes. Taking about 1/4 inch per pass.

grassroots
07-30-2009, 10:04 PM
i've broken three straight bits (that weren't cheap) with my router and ever since i've used my 25 dollar jig saw with zero problems... just my 2 cents

mokedaddy
07-30-2009, 10:06 PM
I dont think I have ever broken a router bit.

Buy good bits, take your time, dont take try to take to much material in one pass and your bits should last forever if used exclusively on wood.

dappa5
07-31-2009, 12:09 AM
lol i only break 1 per year or so and i cut it out in one pass w. 3/8 straight cut bit

ramos
07-31-2009, 08:00 AM
Whiteside , whiteside and more whiteside bits. Cost more than most, but longevity of the bits will more than pay for themselves over cheaper ones :)

ramos
07-31-2009, 08:02 AM
no one ever said you had to cut the circle in one pass...I usually make 3 passes. Taking about 1/4 inch per pass.


si, they say the exact opposite. Multiple passes with no more than a 1/4" per pass depending upon the material being cut. MDF is hard on bits, so it's a really good idea to heed this :)

dappa5
07-31-2009, 08:34 AM
sure whatever works for all of you
i am a trim carpenter for living and i have some pretty nice routers and bits plus i'm impatient so i do one pass lol

but multiple with a 1/4 bit is ideal

ramos
07-31-2009, 08:51 AM
sure whatever works for all of you
i am a trim carpenter for living and i have some pretty nice routers and bits plus i'm impatient so i do one pass lol

but multiple with a 1/4 bit is ideal


I just hate sanding away burn marks :)

BassMechkanic
07-31-2009, 02:56 PM
i use a 1/4 spiral, porter cable punge router, do it in 2 passes, take about 30 seconds to cut out a sub!

Alter Ego Trip
07-31-2009, 03:05 PM
Why don't you just make your own jig? There's not much to it and would save a few bucks.

mlstrass
07-31-2009, 03:38 PM
only downside is the dust that MDF makes when using a circle jig to cut the holes out....

jmanpc
07-31-2009, 03:45 PM
I just have a 1/4" straight bit I got from Harbor Freight in a 3-pack for $7. I've probably cut 50 holes with no issues. I do it in 1/4" passes.

BassMechkanic
07-31-2009, 03:49 PM
Why don't you just make your own jig? There's not much to it and would save a few bucks.

if your ever used a jasper jig, and see how easy it is you would own one also. I have it mounted to a extra plug base so just drop in motor with bit and cut away.

jmanpc
07-31-2009, 03:50 PM
I dropped my router and broke the jig :(

So, I just used it to trace another one on 1/4" MDF and made my own :)

Alter Ego Trip
07-31-2009, 05:09 PM
if your ever used a jasper jig, and see how easy it is you would own one also. I have it mounted to a extra plug base so just drop in motor with bit and cut away.

I have and mine works just as well, and it didn't cost me 30 bucks either. ;)

boomintahoe
08-01-2009, 10:21 PM
Ive been looking all over for a circle jig (homedepot, orchard, lowes, sears) no on carries them. Do you have to order one?

Since no one mentioned it, I got mine at http://www.partsexpress.com and looks like both for like 40 bucks.