Aquarium Glass Dimond Hole Cutter

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  • Regular price £6.99


Glass Cutters


Great for drilling holes in aquariums for return pipes Bulk heads

we also sell waterproof plastic hole guides to hold you cutter steady 

just clamp the guide onto your aquarium and start drilling, No slipping with cutter nice clean cuts.

Sizes:




- 15mm Diameter

- 20mm Diameter


- 25mm Diameter

-30mm Diameter

- 45mm Diameter

 Diamond tipped for Aquarium glass cutting. Fits in any standard drill


Tips For Use:

1) Use a Template

Because glass hole cutters do not have a mandrel or a pilot hole, it is important to use an adequate template to keep your drill bit centered. If no template Holding the drill firmly drilling should start at an angle of 45 degrees until the hole has started and then the drilling should continue at 90 degrees to the surface. Not adding pressure to the drill just using the weight of the drill.

2) Cooling and Lubrication

When cutting glass it is important to ensure the hole cutter is kept nice and cool to avoid damage to the material being drilled and premature wear of the cutter.
Water is an ideal coolant and a constant supply will need to be applied to the tool during use.
This can be achieved by running water over the hole during use or by creating a well using

Plasticine or putty.


3)  Safety Be Careful!

 As far as applied pressure, just take it easy and don't force it. Remember, glass edges are sharp, so be careful with the exposed edge of the hole and the remnant when you are done so you do not cut yourself. Eye and hand protection should be worn at all times.

WARNING! - DO NOT ATTEMPT TO DRILL TEMPERED GLASS IF UNSURE DON'T CUT-  it will shatter in 1000 pieces.

Notice: Any time you drill a hole in glass there is a risk of failure.  We do not warranty aquariums that are broken from drilling.