Senior Moment Member
Join Date: Jun 2011
Location: West Vancouver B.C.
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Bear in mind that is you are drilling into a lead keel that makes lead dust, hazmat and toxic to breath. The procedure there is usually to use drilling mud (i.e. grease or lube) so that no dust comes out of the holes are you are working, and a particle mask would be good insurance anyway.
I expect you'll need to rent a large drill to make that job go fast, and simply buy a nice shiny sharp new bit for the holes.
When drilling lead with a sharp
bit there is no discernible `dust` - it drills with lovely long curls of lead. Wearing face protection is advisable when drilling anything but you really don`t have to worry about the toxicity of lead IMHO unless you are a pro doing a lot of it regularly.
I, myself, personally intend to continue being outspoken and opinionated, intolerant of all fanatics, fools and ignoramuses, deeply suspicious of all those who have "found the answer" and on my bad days, downright rude.