Keyhole Slot Router Bits

how to make a keyhole slot in wood with a drill   Dan how to use slot injector

Why over complicate it I'd just use a couple of Forster drill bits and the drill press One size to recess the plate and a smaller one to make

You will need to mark it up, drill two shallow flat bottomed holes side by side the diameter of the larger part of the keyhole slot deep enough NOTE: We recommend drilling a pilot hole at the start of the slot sized slightly less in diameter than the large diameter of the keyhole router bit

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