slim_boy_fat
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- Scottish Highlands
Yes, I had to do that for every single hole. Though my modified spade bit meant I pretty much had to guess where the hole was.
This is very old and slightly chewy marine ply. Sometimes the bit would lust tear a chunk out, look at the pic above showing the un-chamfered holes, that's where the bit went IN! If I had drilled all the way through it would take a massive chunk in one great big tear. Not much I could do except drill from both sides but super happy with the result anyway.
I'll measure the sizes of both tomorrow.