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mani

ebay.. glass drill bits

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hey there anyone tried those.. ebay glass hole drill bits, which are about 15bux including delivery.

cos i need to drill 4 x 25mm hole in my tank for a sump (6x2 ft tank)

i have been warned not to use these cheapie bits.....

any suggestions or experience would be great

thanks guys

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these are the ones i use i got the 28-40 mm set and a 42 mm also got a 1/2 round med grit glass file awesome investment

teddy is great to deal with and has them to brisbane in about 7 days go get some from him you wont be dissapointed

lance teddy has a 6mm so ray should be ok with that size

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20 mm is great for the return if your using a spray bar

allways allow 10mm more than the bulkhead u want to use as u need to take into account the thickness of the bulkheads and their threads

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All my holes in tanks are 35mm for 25mm bulkheads even the inlet i just use a screw fitting with a 13mm nipple to quirt out water. Saves buying different sizes and changing bits when drilling + its easy to change it to an outlet if you add tanks and make a bigger system

:fish:Junkie

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20 mm is great for the return if your using a spray bar

allways allow 10mm more than the bulkhead u want to use as u need to take into account the thickness of the bulkheads and their threads

20mm return are shit. my 15mm inlet out flows a 25mm return

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