Glass Hole Saw Question

[Easto]

The hole saw I have is something like this. The part that the drill attaches to is round with threads.

I would assume it would have sort of of hexagonal end for the drill to hold onto.

Looking at google images it looks like pretty much most of these hole saws are the same. Is this what everyone else uses and are there any problems with the drill being able to hold the bit / hole saw?

 

[TORX]

This is what you need for sure. The problem is always starting it. Thanks to physics, the bit just wants to run across the glass. I start my hole with the drill angled and hold it steady on just one edge, then as it starts to make a deeper grove, I slowly tip the drill vertical letting the drill do all the work. It cuts a hole and a circular peice of glass will fall, I put a towel or cardboard down to catch it when I drill from the outside in. Oh, lots of water and time.

 

[Pistol]

As long as the drill holds the saw straight and centered it should be ok, there is very little torque involved with drilling glass, slow speed and light pressure and let the saw do the work.

 

[TORX]

Just be sure it is not one of these

. It has to be a glass hole saw. It will be labeled specifically for glass. The other all purpose ones will do most everything...but glass.

 

[TORX]

If it looks like this, it is for masonry, not glass

 

[Pistol]

I think he is saying that the shank is threaded, prolly specifically for a machine like a CNC or something.

 

[TORX]

I think he is saying that the shank is threaded, prolly specifically for a machine like a CNC or something.

I agree, but I am trying not to assume. Too many times I forget the basics and just jump to what I assume...sometimes I assume incorrectly.

 

[Easto]

I bought it from pets and ponds (I think it was them) when I got my Eheim 1262.

Any way it was from an aquarium store.

I think I get the whole drilling part. I was just confused why the shank it round. Seems like that would be tough for the drill to hold.

 

[heath]

I admire anyone that is willing to drill their tanks, I am a chicken...

 

[zoomster]

I think Easto is saying that the chuck shank is round without the 3 bevels on it.
And as Torx said it will be no problem at all for your drill.
And lots and lots of water.
I always use a garden hose with constant running water and a very steady hand.

 

[jeffopentax]

For what it's worth, here 's how i did all mine...

Stand tank on side you want to drill with a couple 2x4 underneath to raise off ground.

Drill a hole in a piece of plywood (big enough for glass bit to fit through) to guide the bit and prevent it from "walking".

If tank has a plastic frame, as most do, pour water in until it flows over. Hold or clamp plywood guide in place and drill, always let the bit do the work. Very little pressure is needed. I have found it's not necessary to use running water. The 3/8" deep water (depending on frame) is enough to keep bit and glass cool, even when drilling 3/4" glass.

Hope this makes sense and is at least a little helpful


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[Sewerat]

I admire anyone that is willing to drill their tanks, I am a chicken...

Oh come on I showed you how easy it is. Just go nice and slow use lots of water and did I say go nice and slow?

 

[heath]

you are a good teacher but never the less there are a few things that I won't try, drilling holes and fragging, lol...

 

[TORX]

...I was just confused why the shank it round. Seems like that would be tough for the drill to hold.

Most bits have a round shank. There are some with edges, but typically the shank is round. No worries about slippage, so long as you use the chuck properly. I still prefer a good 'Ole fashion chuck and key over the keyless.

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[MrHermit85]

Its great they are round lol, if the bit catches the glass rather have slippage in the chuck than have it pound the glass and make chips Besides Many drill bits are round at the base.

 

[Easto]

Drill time tomorrow, hope all goes well

 

[heath]

Drill time tomorrow, hope all goes well

good luck and keep us posted..

 

[scubasteve]

most high end expensive glass ones have a smooth round shank this is so if the bit gets stuck or jammed it will spin in the chuck instead of applying more torque and cracking the glass.