Coil Style Handspring Modification

[Coffinmaker]

Flatbush, ............. You are OH SO SCREWED!!  Murphy's cummin ta get ya and hi's runnin HARD.  Your OEM flat hand springs are now going to snap like itty bitty tooth pics.  It's ALL OVER!!

the hole in the frame is punched with a 3/32 drill.  Keep your drill speed low and keep the drill lubricated.  If the drill runs dry and snaps
off down in the frame, your are so screwed.  Don't ask how I know this fact 

On a Pietta frame, it helps if the hole is punched a degree or two off vertical, toward the bottom of the frame.

Lefty!!
Since I'm only working on Pietta these days, I have a block of wood that fits in the drill press vice to align the frame for drilling.  Then I
cross my fingers and grab the handle.  KEEP OIL ON THE DRILL!!

Coffinmaker

[Lefty Dude]

Yep; I use cutting oil, lift the bit often and re lube. Broken my share of bits I should have lubed in my day. And being 77 years young, well it was a few in my 40 years as a Craftsman in the construction trade.

[Fingers McGee]

Since I'm only working on Pietta these days, I have a block of wood that fits in the drill press vice to align the frame for drilling.  Then I
cross my fingers and grab the handle.  KEEP OIL ON THE DRILL!!

Coffinmaker

Use an old cylinder sitting face down on a drill press vice.  Drop the arbor of the frame you want to drill through the cylinder.  It will be plumb in all directions.

[Coffinmaker]

Fingers,

Now WHY    didn't I think of that    All that work, making jigs for the Drill Press and I had a perfect Jig just sitting on the bench holding li'l screwdrivers.  Humpf   

Coffinmaker