And for todays f### up!

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Hung over, think I'll squeeze in a quick job before running the kids around...

Drill out door for a tubular latch with a 20mm bit, but latch is more like 23mm...

Arrggggg!

Is there such a thing as a 20mm for the meter tubular latch?
 

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assuming you are using a spade bit
i personally think you will have to fully fill the hole and start again iff you cant find a smaller latch
otherwise before you have got more than 10mm in it will go berserk creating a triangular hole
 
Use a 23mm drill bit for steel. With care it should do nicely. Reduced shank drills are available for well under a tenner.
 
22mm drill bit is std for tubular latches

you could drill through a bit of 50 x 50 timber, screw it to the door with the hole in line with the one youve drilled, then drill through, it should guide it enough to drill through


there is a bodge way to try: drill it with a 22mm bit with the drill going backwards
 
Use a 24mm hole cutter over a 9mm piece of ply pinned over the hole to centre the guiding bit of the harbour.
Once at the desired depth, the extra bits will probably fall off, otherwise remove them with a small chisel.
You'll be then left with a 24mm hole.

For future reference: always keep a caliper handy when doing any job.
People laugh at me and call me Mr millimetre, but I don't like spending a day on a 5 minute job, so I measure things despite the "instructions".
 
A twist drill will be easiest and do the best job.

Look for a "blacksmiths drill" which fits a smaller chuck.
 

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