hole saw questions

[devonkyle77]

so i need to drill a hole in my battery tray for my fmic piping. i see that hole saw drill bits seem to be the suggested means for such a task. what size do i need? where can i get a cheap one, since chances are this is the only time i will ever use it?

any tips and or advice would be great, thanks guys

[usdm180sx]

What diameter is your piping?

[devonkyle77]

its a greddy kit, im assuming 3 inch on the cold side.

[burnsauto]

no, thats 2.75" for the greddy.

I use a 3" hole saw. usually around 20-25 bones.

[devonkyle77]

where did you get it?

[burnsauto]

where did you get it?

home depot or lowes...

[singlecamslam]

Home Depot has got them things.

Edit: beat me to it.

[los_inc]

lowes. home depot those places usually carry hole saws make sure it's for metal
-los

[Addicted2Kouki]

if youre really cheap...

drill a bunch of holes in a circle.
placed close together
then hit out whatevers left with a hammer and flathead.

[garagelu]

My recommendation is to get a size bigger than your piping. Usually kit piping is 2.75 and with a 3 inch hole saw that only 1/4 inch of clearance. I bought a 3 inch hole saw and luckily I did a good job of marking where the piping was going to go. With a bigger hole you have a little room to mess up. But still take your time and make sure you locate the hole in the right place.

Also with a 3 inch hole saw, its really tough to fit some rubber hose around the ridge of the hole so the sheet metal doesn't rub on your piping. My recommendation is to go to a 3.5 inch hole saw. I dont think they make a 3.25 inch hole saw.

[Katsumbhong]

Dremel that shit!

[Mister.E]

a 3 inch hole saw will work fine. if you just use the instructions that the kit came with you can measure to the center of the hole and it will fit perfectly when you are done. i also cut a slit in a piece of vacuum tubing lengthwise and lined the bare metal on the hole with it so that it wont rub through the pipe.

if you dont trust your own work then go with the 3.5"

[garagelu]

Dremel that shit!

yea dremel it if you want the hole to look like a 5 year old kid did it. Using a holesaw is 10x easier that dremeling it anyway.

[undesiredshoe]

Drill really slow with the saw and use some cutting oil or at least some motor oil. If you think you are drilling too slow, GO SLOWER!

[burnsauto]

if youre really cheap...

drill a bunch of holes in a circle.
placed close together
then hit out whatevers left with a hammer and flathead.

been there, done that...and it comes out terrible.

[S14DB]

In the tool coral they'll have these and the mounting bits.

http://www.homedepot.com/catalog/productImages/400/1a/1ac7da05-6801-458f-91b4-eea7a4a8fa0f_400.jpg

RIDGID No. 7026, 3 In. Bi-Metal Hole Saw - 7026 at The Home Depot (http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10051&langId=-1&catalogId=10053&productId=100495379)

[burnsauto]

damn overpriced mounting bits... thats where they get ya!

[Addicted2Kouki]

been there, done that...and it comes out terrible.

hence... "if youre really cheap"
LOL

[BustedS13]

i was going to suggest this harbor freight set, but it's not a bimetal set. who knows if it'll get the job done.

Harbor Freight Tools - Quality Tools at the Lowest Prices (http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=94665)

[Phaze*2_Mizzark]

home depot, thats where i got mine. works great. just be careful not to hit your washer fluid tank. or take it off before you cut that hole. good luck.

Mizzark

[homeslicej2]

yea dremel it if you want the hole to look like a 5 year old kid did it. Using a holesaw is 10x easier that dremeling it anyway. That's what the "professional" shop did with mine. they used a freaking sawzall or something. You'd think that since they did it all the time they would have metal holesaws. sheesh, DIY ftw and from now on.