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Old 1st Oct 2020, 12:37 pm   #1
Al (astral highway)
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Join Date: Nov 2006
Location: London, UK.
Posts: 3,496
Default Drilling large finned heatsink

I wish to mount an IGBT module (half bridge) on a large heatsink.

If I align two of the mounting holes above the thin part of the heatsink, the other two are above one of the fins. It means I would have a difficult time drilling and tapping that side.

I want this to be:

1) effective
2) perfect

Any hints or ideas please l? Assume I have only basic tools and facilities , no pillar drill for me, only a battery Makita
I would be grateful for tips on what kinds of bolts to use - self-tapping ideally ?
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