I was going to get one of these but got the Amazon one instead...
All these bits seem to say you can drill fast and don't need water in the instructions but then everyone on the internet says go slow and use water.
I may also have pushed too hard with hindsight and not let the bit do the work.
I ignored that and went slow and wet. Had a cup of water to dip the drill bit in now and then.
@Brommers started
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I was going to get one of these but got the Amazon one instead...
All these bits seem to say you can drill fast and don't need water in the instructions but then everyone on the internet says go slow and use water.
I may also have pushed too hard with hindsight and not let the bit do the work.