David Paule
Well Known Member
This worked for me for drilling a panel (not mine) to match the mounting plate of an instrument. The plate had nutplates attached to it.
My transfer punches are in fractional sizes so they didn't fit.
I found a number drill that was a very good fit. I sent the panel's owner out to the hardware store to buy me a replacement drill bit, and cut the flutes off the drill with a Dremel cut-off disk. This left me with a short smooth stub. That went into the drill press and I put a shallow point on it.
Presto! A custom transfer punch.
I had to go over these rather shallow punch marks with a deeper punch but that was no big deal. Then with the locations very well defined, the owner drilled the holes.
The mounting plate fit perfectly.
Dave
My transfer punches are in fractional sizes so they didn't fit.
I found a number drill that was a very good fit. I sent the panel's owner out to the hardware store to buy me a replacement drill bit, and cut the flutes off the drill with a Dremel cut-off disk. This left me with a short smooth stub. That went into the drill press and I put a shallow point on it.
Presto! A custom transfer punch.
I had to go over these rather shallow punch marks with a deeper punch but that was no big deal. Then with the locations very well defined, the owner drilled the holes.
The mounting plate fit perfectly.
Dave
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