Diamond bit to drill through wood?

[Flatlandreefer]

I am getting ready to drill a couple holes in an aquarium. I am wanting to use a piece of wood as a guide for the bit. Does anybody have experience drilling through wood with a diamond glass drill bit? I saw a video on youtube with somebody doing this but I don't want to mess anything up with the bit.

 

[Lowell Lemon]

Drill the hole in the wood first with a hole saw made for wood. This will act as a guide for the diamond bit. If you take a little plumbers putty and form a rope of putty around the hole you can fill the guide with water to assist the cut of the diamond bit.

Do not put a lot of pressure on the diamond bit but let it scratch through the glass to prevent cracking the glass.

I drill granite and quartz every week this way...unless the CNC does it first!

 

[siggy]

that would gum up the bit then start burning it up.

 

[User]

I used the diamond bit to cut through 1/8” plywood as a guide. Your guide doesn’t have to be particularly deep, just stable and tightened down to stop skipping.

Anything thicker than that and I’d use a hole saw bit. Your diamond bit will be a little tight in the template but that’s a good thing. No slop

 

[cromag27]

wow. do not drill through wood with a diamond bit. as @Lowell Lemon explained, drill through the template with a wood hole saw, secure template to tank, switch to diamond bit.

 

[eggplantparrot]

Get one of them adjustable circle cutter bits, very useful for cutting any round holes you will ever need on wood and acrylic