Enlarging a hole in plastic barrel
I have a barrel with a 3/4" hole in it that I want to enlarge to 2". How would I do this? Apparently a hole saw will not work because the pilot bit has nothing to grab. Is there an alternative?
Would it be possible to:
Brace the barrel hole side down facing a 2x4 and then drill from the inside out using the 2x4 as something the pilot bit can purchase onto with the barrel sandwiched between?
The ultimate plan is to use a uniseal in the resulting hole.
Fluval Spec V
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