1 in. Rubber Grommet drill bit size?
- Thread starter m420p
- Start date
it should say on the pack they came in what bit size to use,if not trial and error,use a piece of scrap plastic(from the piece you cut out for your net pot)I can tell you this though not all gromets take the same size bit,if you get them from 2 differant places check before you drill,I cant be 100% sure but I think I used a 5/8" bit not sure what that is in metric
m420p
Well-Known Member
They didn't come in a pack, I got them individually from a hydro store and the guy working didn't even know. But ya, already doing the trial and error thing on a junk bucket. It can't be 5/8", it has to be bigger than and inch and when measuring with a measuring tape, its around 1.5 inches. I have 1/2" grommets that I will be using and found info online that those need a 13/16" bit. But I guess I'll figure it out, thanks for trying.
rollingstoned1982
Member
why dont you use a stepper bit on your practice bucket then mark it with a bit of tape when you get the correct size, this would be alot easier and a better fit than using a hole saw.
m420p
Well-Known Member
That's a good idea but I'm pretty sure I got it figured out, already got a 1.5 inch hole saw bit and I'm almost positive that's what it is. Thanks for the info though.
Phillip J Fry
Active Member
hmm I just got some 3/4" grommets, wonder what size I need??? Will repost the answer when I figure it out.
Edit: Sure appears to be real close to 1 inch using a tape measure.
Edit: Sure appears to be real close to 1 inch using a tape measure.
Phillip J Fry
Active Member
here is a pic of what mine looks like.
Get a dial or digital caliper & measure the outside diameter of the inner groove without compressing it.
Any decent hardware store employee could do it for you & even get you the right hole saw/drill bitt.
Jeeze, why make it so complicated?
Any decent hardware store employee could do it for you & even get you the right hole saw/drill bitt.
Jeeze, why make it so complicated?
dukeanthony
New Member
Guys are making this real hard
Take a grommet
Go to the Hardware store us one of their for sale calipers to measure go home
OR
Take a bit of string Tie it around od of Grommet
Unravel string Measure use this formula
circumference / Pi = diameter
Take a grommet
Go to the Hardware store us one of their for sale calipers to measure go home
OR
Take a bit of string Tie it around od of Grommet
Unravel string Measure use this formula
circumference / Pi = diameter
Phillip J Fry
Active Member
1and 1/16 inch seems to work good for my 3/4" grommets
Phillip J Fry
Active Member
I did use a caliper to measure mine.
m420p
Well-Known Member
No one was making it complicated! This was a dead thread a while ago. I already drilled the holes and used a spade bit and a hole saw bit, both of which worked well. If anything, going to a hardware store and getting them to do it when you have all the bits already is making it complicated, just sayin.
m420p
Well-Known Member
Did this already, worked well.
I added the "hardware store" part because though I have all the required tools and bits including the dial calipers, (and the know how to use them properly) not everyone does.
m420p
Well-Known Member
Very well, thanks for adding to the thread then.